3
1. Material: PVC board, wall thickness ≥2.0mm, rib thickness ≥ 1.0mm;
2. Components: φ 5mm self-straightening plastic-coated wire, φ 5mm stainless steel wire rope, 90 nylon pulley;
3. Drive: Electric winch/lifting winch
Big Herdsman rolling type curtain system adjusts the air flow rate at the air inlet by adjusting the opening size of the rolling type curtain, so as to achieve ideal ventilation and cooling effect.