tunnel duct

1,Material: PVC flam-resistant static-free fabric/tarpaulin 
2.PVC Thickness:0.35mm---0.65mm
3,Diameter:4" to 60" stander length:5m or 10m
4,Main color: yellow,red,orange .white,black,green ect.
5,Character: enduring high temparature,acid,alkali,oleic acid, harmful liquid state gas  ect.

the duct body is without any lapping defect,with the strong points of high dense,durable abrasion and corrode.anti-static,low wind resistance,strong anti-pressure from 3000pa-12000pa.
Temperature range:from -15℃upto +120℃.