半刚性易伸缩软管Technical Data技术数据The highest air flowing speed:30m/s高温气流流速：30米/秒The largest work pressure:2500pa.最大工作压力：2500帕Diameter：4 ~12 .直径：4-12英寸Length：To buyer opition.长度：由买方选择Alu 1-layer:Spirally produced ducting of one layer of Aluminium Foil.构造：由铝带形成螺旋形制成的管子Advantages优点Semirigid Flexible Ductare being used for the HVAC market as well as for various industrial purposes.半刚性易伸缩软管被用于HVAC（采暖通风与空调）设备，同时也可以用在各种各样的工业设备上。Low costs on transport and logistic.运费和后勤成本低。Easy to install over either round or oval ducting.能够运用于各种圆或椭圆的管子上。