通风软管材质：PVCDiameter Range : 75-1200MM (3.5-4.8)直径范围 Temperature Range: -30oC~200oC .温度范围Max.Air Velocity: 30M/S .含有杂志的空气流速 Working Pressure : 2500pa最大工作压强：2500帕Standard Length : 10M标准尺寸10米1.Mesh fabric Flexible ductdurable material made of Mesh fabric nylon+helix steel wire由钢丝形成螺旋状加上尼龙织品而成。2.Apply for low /medium / high pressure, use forair ventilation in each environment .可以在低、中、高压强下工作，用于气体流通装置之上。3.Round style, and easy to install oval or round connection .可以方便的安装在圆形的连接器上.4.Fireproofing,at high temperatures and higher pressure .防火，适应高压高问的环境。5.Easy to delivery .易于装运.