1 塑料特性,耐腐蚀
1 plastic properties, corrosion resistance
2 减震功能,噪音低
2 shock absorption function, low noise
3 管径大,通风流畅
3 large diameter and fluent ventilation
4 轻松组装,效率高
4 easy assembly, high efficiency
5 拆装重叠,运输成本低
5 disassembly and overlay, low transportation cost