... &false ceiling:75mm thickness double color steel sandwich panel with polystyrene foam inside. Heat Insulated coefficient is 0.041w/m.k. Heat ... of 0.7 mm steel, 90mm thick rock wool insulation foam. 4. Inside Door:SIP, single door with dimensions of 750 ... 3keys. Doorframe is made of aluminum, 50mm thick EPS insulation foam. 5. Window 1:PVC, white color, with dimensions of 1200 ...