PVC&AL combined duct has the following features:
1) Aluminum foil was sticked to the PVC by hot air, with spiral steel wire.
2) Maximum pressure: 350MMWG.
3) With the high flexibility, it has the advantage of easy construction.
The product can be applied in the place which need the ventilated ducts be heat resistance, acid-base resistance. And the PVC can be white, gray or black.
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