PVC Flexible Fabric

FEATURES

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    Layflat ventilation duct are ideal for positive pressure application
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    Seams and grommets are welded to be airtight, providing low friction loss
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    Woven/knitted polyster fabric with both sides PCV coated
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    Flame resistence conforms to DIN4102 B1/EN13501/NFPA701/DIN75200
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    Diameter range 200-3000mm, customization is available.
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    Standard lenght 10m, 20m, 50m, 100m...develop specifically for TBM, the section length can reach 200m, 300m or even longer, and the lifetime can be up to 5-10 years

PRODUCT TECHNICAL SPECIFICATION