... is 1220mm3.Usagewidely used in building construction4.Featuresfireproof, waterproof, heat/cold resistance, anti-ultraviolet, anticorrosive, electric insulation5.High ... as small specific gravity, high strength, corrosion resistance, heat insulation, electric insulation.It is the ideal future materials ... in the outdoor weather condition Waterproof Heat-resistant WPC Foam Board and WPC Shuttering Board