材料：聚氨酯
Material: polyurethane
流体：空气
Fluid:Air
流体温度：-20℃~+70℃
Fluid temperature: -20°C~+70°c
特点：具有普通PU管的特性，还更加的柔韧，耐气候，适合拖链用管和真空吸管等。
Features: lt has the characteristics of ordinary PU pipe, but also moreflexible, weather-resistant, applied to vacuum hose and drag chainhose
