suction fan

• 发布日期 : 2021-07-13
• 访问量 : 2 次
• 栏目 : ventilation system

1. The negative pressure fan adopts high-quality aluminum alloy wheel, which is firm and durable;
2. The thickened galvanized fan blade adopts a new U-shaped design, which has larger air volume and lower noise;
3. Heavy weight and thickened shutters are more tightly sealed to prevent rain and mosquitoes from entering