Electronic fabric (PCB cloth): the common name of printed circuit board base cloth, woven from electronic E-glass fiber yarn, it is a high-grade product in electronic glass fiber cloth. Electronic glass fiber cloth belongs to the application field of electrical insulating glass fiber. It is an important basic material of electronic industry, mainly used as the raw material of copper clad plate. Electronic glass fiber cloth is used as reinforcement material, impregnated with adhesive composed of different resins and made into copper clad board, which is commonly used in printed circuit board.