1. double-sided pe-coated fabric, weight: 200 ±10 g/㎡, special additives and anti-aging agents added, with long service life

2. channel steel is fixed below the opening, and the size of the air inlet is adjusted according to the lifting position of the curtain system

3. traction lifting: european winch/self-controlled motor

4. the falling and stacking control mode is adopted, with counterweight tubes added in the middle, which can be stacked smoothly during falling

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