1. Crystal foil phenolic glass layer pressure plate: It is a layer of pressure products made of epoxy phenolic resin through the heat pressure of epoxy phenol. Good performance and convenient processing. Its plate surface is pale yellow. If the triamine is used as a curing agent, the surface of the plate is pale green and has good transparency. It is mainly used as printed circuit boards in radio equipment with high working temperature and frequency.

　　2. Copper foil phenolic paper layer pressure plate: It is a layer pressure product made of phenolic resin perfume with phenolic resin through the heat pressure of phenolic resin. Comes with a single -alkali glass soaked tape, and it is applied to copper foil. It is mainly used as a printed circuit board in radio equipment.

　　3. Soft polyester copper film: It is a band -shaped material made of polyester film and copper thermal, and it curls into spiral shape inside the device in the application. In order to reinforce or moisture -proof, it is often poured into a whole with epoxy resin. It is mainly used as a flexible printed circuit and a printed cable, which can be used as a transition line for plug -in.

　　4. Copper foil epoxy glass layer pressure plate: It is a commonly used material for hole metal printing board.

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