... thickness double color steel sandwich panel with polystyrene foam inside. Heat Insulated coefficient is 0.041w/m ... .7 mm steel, 90mm thick rock wool insulation foam. 4. Inside Door:SIP, single door with ... is made of aluminum, 50mm thick EPS insulation foam. 5. Window 1:PVC, white color, with dimensions of ... and two bay sliding, supplied with fly screen. Window 2:PVC, white color, with dimensions 500*500mm ...