... price,fine quality Oil,Acid,Alkai &high temperature ResistantFlexible duct:/air duct/exhaust duct,ventilating duct,flex duct 1,Material: PVC flam-resistant static-free fabric ... 10m4,Main color: yellow,red,orange .white,black,green ect.5,Character: enduring high temparature,acid,alkali,oleic acid, harmful liquid ...