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Goldenmax PCB Material: The Ultimate FAQ Guide

Table of Contents

What Is a Goldenmax PCB Material?

It is a high-grade copper-clad laminate fabricated using assorted, high-quality raw materials and reliable, high-end production technology.

 Goldenmax PCB
Goldenmax PCB

What Types of PCB Material Does Goldenmax International Technology Manufacture?

There are various types of Goldenmax laminates in the market.

The following are the main types of PCB laminates produced by Goldenmax International Technology:

Common Series of FR-4 Copper-Clad Laminates

Under the common FR-4 CCL series, GDM produces the following product grades:

Level A1 FR-4 Copper-clad Laminates.

Level A1 is the highest grade and the best performing FR-4 CCL produced by Goldenmax.

It is suitable for fabricating PCBs for use in most demanding applications such as digital circuits, military operations, industrial instrumentations, etc.

Level A2 FR-4 Copper Clad Laminate

This type of Goldenmax PCB laminate is a general-purpose FR-4 material.

It is suitable for applications that require laminates to meet the general industrial electronic products standards.

The PCB material offers a better cost-benefit ratio and is instrumental for manufacturing the best competitively priced semiconductor products.

You can use it to fabricate general consumer electronic products, ordinary instrumentation, computers, and advanced home appliance.

Grade A3 FR-4 Copper Clad Laminates

Grade A 3 has inferior properties to the above grades of FR-4. It is also cheaper and specifically fabricated for non-demanding applications that only needs that the product application meets the requirements.

You can use it in PCBs for ordinary consumer electronics such as game consoles, toys, and calculators.

Moreover, it also finds application in computer peripherals and home appliance products.

Grade AB FR-4 Copper Clad Laminates

FR-4 Grade AB is a low-end product by Goldenmax technology and has the most competitive prices.

You can use the laminate to fabricate PCBs for use in applications with very low demands on electrical properties.

Such uses include incorporating the Goldenmax PCB material in ordinary electronic products, computers, and home appliances.

Grade B, FR-4 Copper Clad Laminates

It has the lowest quality of all the FR-4 products Goldenmax.

Production of this Goldenmax FR-4 copper clad laminate involves use of a secondary grade sheet that has poor quality stability.

Grade B FR-4 CCL is not suitable for fabricating large size PCBs. Consequently, you should only use it for products measuring below 100 × 200 mm.

It is the cheapest FR-4 product, but you have to carefully consider its properties and your system’s requirements before selecting it.

CEM-3 Copper Clad Laminates Series

CEM-3 CCL products are available in three quality grades; grade A1, Grade A2, and Grade A3.

These Goldenmax laminates are ideal for PCB applications with varying requirements.

Generally, CEM-3 series laminates possess superior punching performance.

This property is a desirable quality for large PCB product quantities that needs stamping processes forming.

You can use the CEM-3 series to manufacture PCB products for watches, LED industry, clocks, computers, general household, and electronic devices.

They come in three substrate colors of black, white, and natural color.

Watch-based Black FR-4 Copper Clad Laminate

 Black GDM FR-4 CCL Laminate
 Black GDM FR-4 CCL Laminate

This type of FR-4 CCL from GDM is also available in three quality grades; A1, A2, and A3 to select from.

Its design specifically meets the thickness, resistance to solvents, blackness among other requirements for watch products.

Grade A1 is the most superior Goldenmax laminate material in this category and is ideal for use in fabricating high-quality, prestigious watches.

On the other hand, grade A3 is competitively priced and is profitable for manufacturing ordinary quality watches and clocks.

You can also use this type of laminate to manufacture PCB of optical instruments.

Special-purpose FR-4 CCL

Here are the two main specialty Goldenmax FR-4 Copper Clad laminates:

Copper Clad Laminates with high CTI

It conforms to the highest standards of IEC requirements.

You can use it for electronic applications such as TVs, communication equipment, washing machines, etc., with high CTI demand.

FR-4 Copper Clad Laminate with Medium and High Heat Resistance

The laminate series offers superior heat resistance compared to ordinary FR-4 Copper Clad Laminate and ideal for ordinary lead-free soldering processes.

Halogen-free FR-4 Copper Clad Laminate

It offers environmental protection against toxic gases emission at the Goldenmax PCB material service life when disposed of through incineration.

It complies with emerging concerns on environmental degradation associated with ordinary FR-4 laminates at the end of their service life.

It is ideal for industrial instrumentations, communication devices, military appliances, digital computer circuits, etc.

Aluminum-based Copper Clad Laminates

This product has superior electrical, chemical, physical, thermal, and mechanical properties.

There are different grades of GDM Aluminum based PCB materials.

The various grades include grades A2, A3, A5, and A6.

The thickness of these grades starts from 0.6 mm and you can customize them to meet your specific needs.

You can select the different grades as distinguished by the thermal conductivity or the method used to treat the laminate’s surface.

Aluminum-based CCL is ideal for LED lighting applications, LED TVs, switches, power amplifiers, high-power transistors, automotive electronic equipment, etc.

Goldenmax Multilayer PCB Materials

Goldenmax produces diverse multi-layered PCB materials, including semi-cured film, release films, and laminated professional Kraft paper to construct high-count multilayer PCBs.

What Are the Feature of Different Types of Goldenmax PCB Material?

Goldenmax laminates differ in characteristics and inherent features.

The following are the key features of different GDM laminates.

FR-4 Laminates

There are four categories of Goldenmax FR-4 laminates.

These include; ordinary FR-4, Halogen-free FR4, Lead-free FR-4, medium heat, and high heat resistance FR-4.

The FR-4 product possesses the following features:

  • Excellent heat resistance
  • Has high glass transitional temperature
  • Excellent electrical and mechanical properties
  • You can process them following standard FR-4 material processing techniques.
  • Excellent heat resistance
  • Excellent chemical resistance
  • Easily passes multiple thermal shock tests.
  • Excellent resistance to cracking
  • Excellent UV-blocking and detection of AOI properties for some grades of the product
  • The comparative tracking index of some product grades can be ≥600
  • Superior dimensional stability and low Coefficient of Thermal Expansion.
  • High decomposition temperature
  • Lead-free FR 4 materials have excellent resistance to CAF and can easily adapt to lead-free processing techniques.
  • Halogen-free FR-4 materials with low CTE are available.

Prepreg PP

There are five grades of Goldenmax Prepreg PP. They possess the following properties:

  • Compatible with UV and AOI blocking
  • Superior bonding characteristics
  • Satisfactory fluidity and wettability
  • Low water absorption
  • Excellent manufacturability
  • Wide operating window
  • Great storage performance
  • Available in halogen-free options.

CEM-3 Based Products

There are two categories, the standard Goldenmax CEM-3 PCB laminate and high thermal conductivity CEM-3.

The standard GDM CEM-3 laminates have the following feature.

  • Easy to process using standard FR-4 processing techniques
  • Excellent machinability and punch processing.
  • The electrical properties resemble those of FR-4.
  • Plated through-hole reliability resembles FR-4.
  • Available options with AOI functions and UV blocking properties (GC112)
  • Available in grades with excellent shading, resistance to yellowing, and opaque.

Goldenmax High-thermal conductivity CEM-3 possess the following distinguishing features:

  • Superior thermal conductivity features
  • Superior electrical and insulation properties. Comparable to ordinary CEM-3 laminates.
  • Excellent dimensional stability
  • Ideal for plated through-hole processing
  • Easy to processing following conventional aluminum substrate processing techniques.

Aluminum Plated Goldenmax PCB Materials

Goldenmax PCB Laminates fabricated using aluminum plates possess the following key features.

  • Ideal for manual welding
  • Excellent insulation
  • Superior dimensional stability
  • Excellent electromagnetic shield performance
  • Ideal for high-cost performance
  • Has surface anodization
  • Excellent thermal conductivity
  • Excellent processability
 Aluminum-plated Goldenmax PCB
 Aluminum-plated Goldenmax PCB

Why Should You Choose Goldenmax Laminates to Fabricate Your PCB?

The following are some of the benefits of Goldenmax PCB laminates compared to other competitive laminates.

  • The cost-benefit ratio is high because they are relatively cheap compared to other laminates.
  • GDM laminates are very diverse, availing wide options to select from for different applications.
  • There are environmentally friendly options for applications requiring halogen-free and lead-free options.
  • GDM laminates conform to all industry standards.
  • Easy to handle and process relative to other PCB laminates
  • Are highly-reliable for long time use
  • Ideal for construction of multilayer PCBs for use in diverse applications.

Where Can You Use Goldenmax Laminates?

Ordinary Goldenmax FR-4 Materials

There are different grades of ordinary FR-4 materials, which are ideal for use in diverse applications.

The different types of standard Golden FR-4 laminates that you can use for diverse applications include:

Grade GF111 and GF112

You can use this material to fabricate PCB components of computers, cameras, instruments, communication equipment, automobiles, electronic game consoles, etc.

Grade 142

Grade 142 is ideal for use in the following applications.

  • Medium and multilayer PCBs
  • Computers and peripheral equipment
  • Communication equipment
  • Office automation equipment
  • Instrumentations

Grades GF111T4, GF112T4, GF11/T600, GF112T6

Ideal for use in PCBs for TV, refrigerator, power supply board, air condition system, refrigerator among other appliances.

Used in PCBs to fabricate electronic and electrical products for high pollution, high humidity, and marine operation.

Grade GF113

Ideal for PCBs used in LED display and insulation products of instruments and optical instrumental.

Medium Heat Resistance FR-4 Laminates

There are four medium heat-resistant Goldenmax FR-4 materials that you can use to make PCB products for use in different application.

They include GF211, GF212, GF 221, and GF222.

You can use it in the following products: Computers, instruments, communication equipment, cameras, automobiles, electronic game consoles, among other uses.

High Heat Resistance FR-4 Materials

GF321 and GF 322 are high heat-resistant FR-4 materials.

These two are suitable for similar applications as medium heat resistant FR-4 material but with higher thermal reliability demands.

Lead-Free FR-4 PCB laminates

Grades GF432 and GF442 are lead-free FR-4 materials compliant with RoHS directive 2002/95/EC.

You can use employ them in similar applications as the earlier discussed grades of Goldenmax FR-4 PCB materials.

However, they are best fit for applications with a performance requirement of very low levels of lead components.

Halogen-Free FR-4 Material

There are two grades of Goldenmax halogen-free FR-4 materials, which are GF512 and GF532.

You will use these product grades in the following application.

  • Communication equipment
  • Meters and instruments
  • Office automation
  • Computers
  • Automotive electrical appliances
  • Ideal for multilayer PCBs
  • Compatible with lead-free soldering techniques.
  • Environmental protection-based structural parts.

Goldenmax CEM-3 Laminates

There are six grades of ordinary CEM-3 laminates. The first two grades, GC111 and GC112, are suitable for use in the following applications.

  • Information appliances
  • Instrumentation
  • Automatic controllers
  • Automotive electronics
  • Game consoles
  • Tuner

Grade GC113 and GC114 are ideal for fabricating LED display-based PCBs.

Grades GC111T6 and Grade GC112T6 are ideal for:

  • Led based PCBs
  • Home appliances such as refrigerators, TVs, air conditioning systems, washing machines, etc.
  • Electrical and electronic products for use in high pollution, high humidity, and marine operation environments.

High Thermal Conductivity CEM-3 PCB Materials

You can use a high thermal conductivity Goldenmax CEM-3 PCB Material, Grade GC214L laminate in the following applications:

  • Automotive electronics
  • LED lighting
  • Power supply substrates and
  • LCD TVs

Aluminum Plated Laminates

There are three grades of aluminum plate-based Goldenmax laminates.

The first grade, GL 12 λ≤1.0, is ideal for fabricating PCBs for LED lighting and other fields.

Grade 12 1.0<λ≤1.5 laminates are ideal for use in:

  • High power LED lighting,
  • Slot backlight for TV cards
  • Backlight for LED TVs
  • Switches
  • Power amplifiers
  • Automotive electronic ignitors and equipment
  • Amplifiers; inputs and outputs.
  • DC/AC converters
  • High-power transistors, rectifiers, etc.

What Are the Standard Sizes, Thickness, and Tolerance of Goldenmax Laminates?

Goldenmax laminates come in a diverse range of sizes, thicknesses, and tolerance.

The thickness range for FR-4 Rigid Laminates and FR-4 thin laminate for PCB multilayer material.

The material thickness is inclusive of copper foil thickness.

You can custom make other thickness specifications and dimensions to suit your needs.

For FR-4 rigid copper clad laminate, the thinnest panel size is 0.8 mm.

The corresponding tolerance is ±0.100 and ±0.075 mm for B/L Grade and C/M Grade respectively.

Other available panel thicknesses and corresponding tolerance for rigid FR-4 laminates are:

Thickness (metric – mm)Metric (mm) B/L GradeMetric (mm) C/M Grade

You can also get the following standard size materials 915 *1220 mm, 1016 * 1220mm, 1067 * 1220 mm.

The standard sizes of copper foil for FR-4 rigid laminates are 18, 35, 70, and 105 um.

In thin Goldenmax FR-4 PCB material for multilayer PCB, you can get the following thickness and associated tolerance standards.

ThicknessTolerance (mm)Tolerance (mm)
Metric (mm)B/L GradeC/M Grade
0.076 to 0.119±0.018±0.013
0.120 to 0.164±0.025±0.018
0.165 to 0.299±0.038±0.025
0.300 to 0.499±0.050±0.038
0.500 to 0.785±0.064±0.050
0.786 to 1..039±0.100±0.075

For the thin multilayer PCB laminates, the thickness of copper-clad laminates is exclusive of copper foil thickness.

Also, you can customize the other specifications and dimensions of a thin, multilayer laminate according to your requirements.

Thin multilayer PCB laminate is also available in standard sizes and copper foil thickness for FR-4 rigid laminate.

What is a Goldenmax FR-4 Copper Clad laminate?

A Goldenmax FR-4 Copper Clad laminate is a high-quality, fire-resistant PCB material manufactured by Goldenmax Cooperation.

An FR-4 CCL laminate is a PCB laminate constructed using a proprietary GDM process.

Specifically, it consists of a substrate or base reinforcing material, FR-4, and one or two copper sheets pasted on either side.

FR-4 copper-clad laminates are the most widely used materials for the construction of PCBs.

FR initials abbreviate ‘Fire Resistant,’ and the number 4 indicates the grade of epoxy resin reinforced with a wooden glass.

Goldenmax FR-4 Copper Clad Laminate

Goldenmax FR-4 Copper Clad Laminate

An FR-4 CCL is a fibreglass cloth substrate-based copper clad laminate.

You can modify or brominate the epoxy resin appropriately to meet the adhesive requirements of the laminate.

Standard single- or double-layered Goldenmax FR-4 CCL laminate has a main core constituting FR-4 material and copper layers on top and bottom layers.

However, multi-layered laminates have additional components, layers of prepregs, between the centre core and the copper layers.

The laminate, core, and prepreg may all be FR-4 with a copper sheet inserted between the ground and signal layers.

How Do You Manufacture Goldenmax FR-4 Copper Clad Laminates?

FR-4 material comprises a prepreg sheet manufactured using a mat of fibre.

The fibreglass itself has been impregnated with epoxy resin.

Usually, eight layers of prepreg covered by an outer layer of copper foil make up a standard 1.6mm circuit board.

The bonding of copper foil and the prepreg layers happens when you pass the Stack Up through a large pressing machine.

You will make the copper foil using slowly rotating a steel drum dipped into copper’s plating solution.

The slowly rotating drum deposits electroplated copper on its walls.

You strip the electrodeposited copper as the plated emerges from the solution.

The strength of Goldenmax FR-4 laminate will depend on the toughness of the glass cloth you use.

You can make a glass cloth by weaving the fine fiber yarn strands together.

The yarn themselves comprise very small and twisted glasses.

Another component, the epoxy resin, constitutes a bisphenol-A and an ethylene chlorohydrin.

The resin is usually very strong and can withstand almost anything except for strong oxidizing agents and extremely high temperatures.

How Can You Manufacture a Multilayer Goldenmax PCB?

Multilayer PCBs have been around for some time. These PCBs came in 1961 and were very simple back then.

Today’s multilayer PCBs are very complex and finds use in a very wide range of applications.

Multilayer circuit board technology is necessary for more complex, demanding modern electronic applications such as tablets, 4G/5G smartphones, PCs, CT scans, etc.

Consequently, you have to come up with techniques of fabricating highly effective multilayer PCBs with significantly reduced sizes.

A multilayer PCB has three or more conductive copper layers in the middle and other build layers constituting copper foils and prepregs.

You can consider the following tips when fabricating your multilayer PCB.

  • First, make the PCB core.
  • Second, Stack Up the core, prepreg, and copper foil layers appropriately and combine them at high pressure and temperature. This process forms one complete laminate.

Heat melts and cures the adhesive system, which holds the different components of a multilayer PCB together.

The pressure is important for removing excess air from the laminate and accelerating the combination of prepreg and copper layers.

  • The number of prepregs depends on the operational needs of your system.
  • Stack the laminates together, one after another, to the desired layers, then add the final copper to create final lamination stack.
  • You need to pass the final laminate through a hydraulic press, which uses pressure and heat as described above. This process is known as curing and allows the adhesive system to melt and hold the core and copper foil together.
  • Set the assembly to cool and allow the resin to settle at room temperature to complete the process of making a multilayer PCB.

Though the fabrication of a multilayer PCB process follows a similar process, it needs meticulous planning and attention to detail.

The final output is not only dependent on the process but also the planning and attention to detail.

Consequently, you have to be vigilant when selecting the right manufacturer for your multilayer PCB.

You should consider the technical capabilities, experience, certification for a specific industry, and customization options.

What Quality Standards Does Goldenmax Laminates Meet?

Goldenmax laminates meet the requirements of:

· ISO Standards

ISO9001:2008 and ISO 14001: 2004 certification.

· IPC-4101 Standards

All the fabrication procedures and test protocols for Goldenmax laminates comply with the IPC-4101 standards.

·  CCC Standards

Also, Goldenmax laminates are CCC and CQC certified.

Any company in China has to acquire these certificates before they can commercially sell or export their products abroad.

· RoHS Standards

This is yet another important standard when it comes to PCB material fabrication process.

What Factors Determine the Cost of Goldenmax PCB?

Price consideration is critical in designing and manufacturing a PCB.

Understanding the dynamics of PCB prices and fabrication process is fundamental in making a PCB without additional and unnecessary price implications.

Some of the key factors to consider include:

Layer Counts

A PCB with a higher number of layers is necessary for performance-demanding applications.

However, the number of PCB layers linearly corresponds to the cost of the PCB.

You will pay more for a higher number of GDM layered PCB.

Multilayer GDM PCB
 Multilayer GDM PCB

Number of Plated-Through Holes

You should only use holes on a multilayer PCB when they are necessary.

If you do not have any layout or signal restriction, then plated through holes are not necessary.

The cost increase depending on the size and total number of Plated through holes.

Very thin holes are more difficult to make and will therefore cost you more.

Also, the number of holes is directly proportional to the costs of drilling.

Type of Goldenmax FR-4 Laminate

The cost will also depend on the features of the FR-4 you use.

High Tg FR-4 laminates cost more because they can exhibit superior performance in thermals demanding applications.

Special constructions such as halogen-free and lead-free FR-4 laminates also cost more compared to ordinary FR-4.

GDM PCB fabricated using premium GDM FR-4 material cost more than a PCB constructed with a mix of ordinary FR-4 material.

Type of Surface Treatment

Some types of surface treatments are more expensive than others.

OSP is the cheapest surface treatment, followed by HASL Lead, HASL Lead-Free, Immersion Gold, and Electronic gold being the most expensive.

Also, the thickness of surface treatment will influence the final PCB cost, where thicker treatments increase PCB cost.

Copper Thickness

The thickness of copper foil used is also an important price determinant.

Usually, the price increase with increasing thickness from 0.5 Oz.

However, a much thinner copper foil, measuring 1/3 Oz. is usually more expensive than 0.5Oz.-copper foil.

Thickness of PCB

Generally, most PCBs have a standard width of 1.6 mm, which is also a referral point in most cases.

Usually, the cheapest Goldenmax PCB is approximately 0.8 mm thick, after which the price increases linearly with increasing thickness.

Size of Board

The bigger the board, the higher the cost.

The high cost is mainly a result of higher quantity of materials required to manufacture the board.

Thinner board sizes are also very expensive because they use high-quality laminates.

Consequently, the price of boards also increases with reducing thickness for boards below 0.8 mm.

Other important parameters which also affect the cost of GDM FR-4 CCL PCB include:

  • Minimum trace width or space
  • Type of Vias, buried or blinded
  • PCB’s impedance control
  • Type of Via drill, that is, is it laser or CNC drilled.
  • PCB area
  • PCB delivery time

Why Have the Prices of Goldenmax Laminates Increased in The Recent Past?

The PCB industry has experienced an increase in the prices of copper-clad laminates in the recent past.

The cost of almost every aspect of CCL production has been surging sharply since the beginning of the pandemic.

The prices of basic raw materials such as copper, oil, and other related costs like labour and transportation have been skyrocketing.

Consequently, the only viable option for the continued survival of Goldenmax Technologies is to increase prices like other semiconductor producing companies.

Even though the risk of losing some potential customers is high, the alternative would be fatal to the company.

Can You Use Goldenmax PCB to Fabricate PCB Prototypes?

Yes, you can use general Tg FR-4 CCL to design a Goldenmax PCB prototype.

What Are the Limitations of FR-4 Copper Clad Laminates?

Even though FR-4 copper-clad laminates are the most widely used PCB materials, they also have some operational shortcomings.

The most notable is electric and thermal properties’ failure when subjected to excess heat, power, and voltage.

Besides, the dielectric properties of the FR-4 CCL laminates break down when you exceed the operational limits.

Consequently, the laminate loses its insulation competency and instead starts conducting electricity.

Another limitation of FR-4 CCL material is its incapability to maintain stable impedance.

This is due to variation in its dielectric constant across the board’s length and width.

How Does Halogen-Free and Lead-Free CCL Compare?

A halogen-free Goldenmax laminate has the recommended quantities of content halogen.

Specifically, bromine and chlorine content in halogen-free PCB has to be below 900ppm for each compound.

Overall, the total halogen content must not exceed 1500 ppm.

On the other hand, a lead-free golden max CCL laminate must comply with the RoHS directives 2002/95/EC.

Consequently, lead-free must comply with the restricted and hazardous compounds’ set limits to be considered lead-free.

The following table compares the performance of halogen-free, lead-free, and ordinary FR-4 CCL.

Peel StrengthGoodBadBad
CAF resistanceBadGoodGood
Thermal performanceBadGoodGood
Thermal decomposition temperature310°C˃320°C˃320°C
Water absorption resistanceBadGoodGood
T26010 minutes˃30 minutes˃30 minutes
Bending strengthGoodBadBad
Size StabilityBadExcellentExcellent

What Factors Must You Consider When Selecting Goldenmax Laminates?

You should consider the following parameters when selecting the most appropriate Goldenmax laminate to use in your application.

Electrical Properties and Performance

Electrical performance is probably the most important aspect when it comes to selecting the most suitable laminate.

You have to consider individual parameters such as the material’s dielectric constant, dissipation factor, surface and volume resistivity, and electric strength.

Other electrical parameters such as insulation and arc resistance, comparative tracking index, and dielectric breakdown voltage are also fundamental.

Ensure that the electrical features of the laminate you select are in tandem with your system requirements.

Physical Performance

When considering a laminate’s physical performance, ensure that you address the Peel strength, punching quality, dimensional stability, heat resistance, and thermal stress.

Physical performance defines the ease with which you can fabricate the laminate and also its ability to withstand the application’s physical stress.

Chemical Performance

You have to ensure that your laminate has the desirable specifications for resistance to normal use chemical reagents and CAF.

Thermal Performance

It is equally very important to consider the thermal properties of Goldenmax PCB laminates.

This is because when you miss the most suitable specifications, your laminate will damage when overloaded.

Here, the most relevant properties are Z-axis CTE, In-plane Coefficient of Thermal Expansion, and dimensional stability.

Others of importance also include the transition and decomposition temperatures, flammability rating, among others.

Environmental Performance

You can select one of the ecologically friendly GDM PCB material.

This depends on the legislative and regulatory needs or just whether you are ethically concerned with environmental wellbeing.

There are different lead-free and halogen-free golden max laminates that are very friendly to the environmental requirements.

Physical Status/Appearance

You need to check out for the presence of any undesirable defects that may arise from manufacturing, transportation, or storage of the laminate.

Reject any scratched, dented, wrinkled, or any other form of visible damage.

This is because it will affect the performance of your final Goldenmax PCB product


Choose the correct size, core thickness, tolerance, and length and width dimensions.

Consider the diagonal deviations and warpage to ensure that the selected laminate conforms to all the desired PCB specifications.

At Venture Electronics, we will help you find the best Goldenmax (GDM) PCB material for all your fabrication processes.

Contact us now for your Goldenmax (GDM) PCB material need.

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