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Flexible Ventilation Duct > Tunnel and Mining Duct > Spiral Type >
 PRODUCT DESCRIPTION  

Material: PVC or PE
Supported by spiral helix steel wire for reinforcement
Endure at least 8000Pa pressure.
With hanging rings every one meter for easy suspension.
One end with steel ring, one end with bugle sleeve and rope for easy connection
Standard sizes: 4"-60", standard length: 5m or 10m. Custom sizes are also available.
Flexible and light weight for easy use and installation
Rolling up for easy transportation and storage.

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