Polycarbonate, English abbreviation is PC. It is a kind of transparent,amorphous, odorless non-toxic, transparent colorless or slightly yellowthermoplastic raw materials, is one of the best engineering materialglobal application prospect, has excellent physical and mechanical properties, especially excellent shock resistance, tensile, bending,compression strength is high; has good heat resistance and resistancelow temperature, mechanical properties, stable in a wide range of temperature, stable size, can be in -60 ～ 120 ℃ long-term use; no obvious melting point, at 220 ～ 230 ℃ molten state; genus self-extinguishing; light temperature, good weather resistance.