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Material	Nylon fabric
Features	Use nylon fabrics with spiral steel wires to form the duct.  The duct is flexible for stretch and bending, and is convienient to carry for installation.  The duct is high temperature resistant, acid and alkali resistant, oil and gas resistant, and flame retardant. Apply to exhaust emission and HVAC system/workplace, such as airports, underground passages, tunnels etc.

Size	Standard length	Maximum velocity rate	Temperature range	Maximum pressure resistant rate
4"-60"	5M/10M	28M/S	0℃～100℃	250mmWG