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Philips\Koizumi air duct

Product Description:

It is generally made of rolled iron sheet of 2 to 3mm thickness. The advantages of the iron wind pipe are durable, long service time, all kinds of ventilation can be used. Disadvantages are high cost, easy to corrode, bulky, dismantling, loading, transportation is not convenient, difficult to use in the curved tunnel. The use of iron wind pipe in coal mines is decreasing day by day. In recent years, the production of glass fiber reinforced plastic (FRP) wind pipe, the advantages of which are lighter than iron wind pipe (weight of only 1/4 of steel), acid and alkali corrosion resistance, friction resistance coefficient is small, but the cost is higher than iron wind pipe.

Product Classification:

PVC bag

Key words:

Huahai Manufacturing

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Product Details


PVC hard sheet has moderate toughness and is not easy to burn. When burning, chlorine gas will be generated, which will have a certain impact on the environment. PVC is easy to heat and seal. Sealing machine and high frequency machine can be used to seal the edge. It is the main raw material for the production of transparent plastic products.

Commonly used plastic types include PE (polyethylene), PP (polypropylene), PVC (polyvinyl chloride), PET (polyester), EPS (expanded polystyrene), ABS (acrylonitrile-butadiene-styrene copolymer), PA (nylon), etc. Among them, PE includes plastic greenhouse materials, industrial packaging films, lactic acid beverage bottles, detergent bottles, etc; PP has woven bags, packing belts, binding ropes, some car bumpers, PVC has plastic door and window profiles, pipes, etc. PET has cola, sprite and other tea beverage bottles; EPS is commonly known as foam plastic, and the foam packaged in fast food boxes and TV sets is all this stuff.

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