★The heat insulator inside the door is made of high-performance flame-retardant polyurethane, thermal conductivity ≤0.023w/m.k, bulk density ≥45㎏/m3.
★304 stainless steel metal plate. The thickness of the stainless steel plate is 1.0 mm according to the national standard.
★The surface of the plate is the original plate without uneven grooves, and the surface is covered with a protective film.
★The sealing strip on the door body is made of silicone rubber material through high temperature extrusion molding, which has the functions of low temperature resistance, aging resistance and high elasticity.