Flexible duct:

1,Material: PVC flam-resistant static-free fabric with steel wire outside.

500x500D  denier   made of high tenacity polyester weave, PVC coated on both sides,     Fabric W'T-500gr/sq.m

2,Size:width:4" to 60" length:1m to 40m (or according to customer's request)

3,Main color: yellow,red,orange, white, black ect.

4,Application:

• tunnel, basement,
• ship building or electric soldering 
• waste gas exhaust out ,keep more savely and effectively during working.