1,Material: PVC flam-resistant static-free fabric/tarpaulin 2.PVC Thickness:0.3mm-0.6mm .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-8000pa. Temperature range:from -15℃upto +120℃.