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Xuchang Yuneng Electrical Insulation Material Co., Ltd.

FR4 sheet is made of electrician non-alkali glass fiber cloth dipped in epoxy phenolic resin, after baking, and hot pressing.

It is class F .it has high mechanical and dielectric properties, good heat resistance and wave resistance.


It is widely used in generators, motors, electrical appliances as insulating materials and components. It is also suitable to use in the transformer oil pressure and humidity environment .