Door plate
Two layer 0.4mm galvanized steel plate, filled with environment friendly polyurethane plate complying with international environment protection treaty 141B, with features of high density,high strength,heat insulation and preservation.
Total thickness: 40mm (standard) or 50mm (optional).
Heat preservation performance: heat conducting parameter ≤4.5W/m. h.
Sealing performance: air transmission≤.5m/m.h under 50pa pressure.
Density:50kg/m3
Wind resistance parameter:450N/m2
Fire retardation:Class A.
Surface printing layer:30um.
