Asbestos board+ Copper
Use electrical asbestos fabric to submerge into epoxy resin, and then use heat to press into form.


Attributes
High toughness
Easily processed
Endures high heat
Naturally lubricated
Endures chemical reaction
Usage
High-frequency machinery use board that endures high heat
Fits use for electrical machinery, insulation parts is used in electronics equipments, also can be used in moist environment and pressure-transformable oil.