1. Panel: PC material is commonly used polycarbonate, PC material is also called bullet-proof glue, impact resistance, high temperature, not easy to change the characteristics of the control of electrical switches is very important. The poor panel uses the general ABS material or other recovery material, the elasticity is not too good, easy brittle.
2. Base: The use of flame-retardant PC materials, smell no odor, with the fire burning machine will not produce flames, after burning to produce white gray powder.
3. Switch function: Mainly manifests in the selected material merchant, the internal copper piece chooses the tin phosphor bronze, the electric shock currently has three kinds, the Silver nickel alloy, the silver cadmium alloy and the pure silver, the nut and the card mat uses the brass material.