... times that of ordinary glass of equal thickness11. UV protection: PC board side coated with anti-ultraviolet (UV) coating, the ... pipes, pipe fittings, pipelines, centrifugal pumps and blowers. (3)PC hard board is widely used in the chemical industry for ... the electrical and electronics industry, used in the manufacture of plugs, sockets, switches and cables. In everyday life, sandals, raincoat, toys ...