Metal wind pipe is made of various metal materials, the wind pipe, commonly used including galvanized iron and stainless steel.
The wind pipe market according to material is generally divided into three categories: Tin wind pipe, stainless steel duct and composite duct. Among them, stainless steel wind pipe quality is best, applicability is strong, but the price is high.
Galvanized iron duct with the basic characteristics of stainless steel wind, but the price just stainless steel wind the third second or even lower.
Because iron sheet easily chemical reaction in various circumstances, causing corrosion, rust. And zinc in dry air almost no change. In the humid air, basic zinc carbonate, zinc surface will generate dense membrane. Tin wind pipe is mainly in the wind pipe on the tin plated with a layer of zinc to protect iron from. The zinc coating can improve its protective and decorative property obviously after passivation, dyeing or coating of the light..
The composite air pipe is composed of various inorganic materials, and is composed of many kinds of composite air tubes, but it is lightweight, porous, and thermal resistance..
When we go to choose, there should be a basis for selective selection of wind pipe type. The utility of galvanized iron sheet air duct is stronger and can be considered.
. Share the above is to the production quantity and the volume of international trade as the embodiment, but actually aside manufacturing, photo frame, picture frame, photo frame core design is highly