Emergency manual chain for power off operation industrial doors high sustainable

Products:

1, Housing for the hot rolled steel plate ZF075, high strength, no rust;

2, The door body thickness are respectively 40mm,50mm;

3, Good insulation properties, high coefficient of heat insulation: R=16.04 R=20.15;

4, At the bottom of the U type tubular rubber strip and roof, side seal cold resistance, good sealing , and can adapt to the slightly rough ground, cut off the rain against;

5, The metal solid firmware are made of galvanized steel plate, high strength, no rust;

6, Oil tempered high torsion spring, the use of cycle 100000;

7, Glass windows made of steel glass or organic glass, with good light transmittance;

8, Advanced infrared protection devices and safety protection device.

Features:

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