... (mm): 0.35~0.60The material of core: EPS, PU rock wool or fiberglassThe material of cover: corrugated steel sheets ... L)The EPS density8-15kg/m3The Rockwool density110-150kg/m3The PU density40kg/m3The steel cover thickness0.35-0.50mm (colored steel ... factory, manufacturer, exporter of color steel sandwich panels,Producing and installing EPS, rock wool, PU sandwich panel, 3million m2/year. Our information ...