industrial door

industrial door 1,The crust is made of hot-soaked galvanized coil steel plate ZF075 which is of high strength and rust-resistance; 2,The thickness of door is 40mm and 50mm respectively; 3,With steel/polyurethane/steel structure, the door has good insulation function and high heat-preservation coefficient: R=16.04 R=20.15. 4,Rubber tape of U tubular shape in the bottom, as well as the sealing stripe on the top and side are cold-resistant and with better sealing performance, thus being adaptable for slightly uneven ground and protect the door from rain and wind; 5,All the metal fittings are made of hot-soaked galvanized steel which is of high strength and rust-resistance; 6,High torsional spring with oil temper treatment boats using period of over 100,000 times; 7,The glass window is made of tempered glass or organic glass, thus with good light transmittance. 8,Advanced infrared protective device and air-sensory security device.