Also known as spiral or helical spiral piling pipe, is a low-carbon steel or low alloy steel strip at a certain angle of the helix (called molding angle) rolled into a tube and then welded together to form a tube it can be a narrow strip production of large diameter steel pipe.
Rust is the result of high-power spray jet vane motor driven high-speed reverse, the grit, steel shot, wire segments, abrasive minerals under the effect of centrifugal force on the pipe exterior spray and disposal, can completely eliminate rust, oxides and dirt and steel in the abrasive impact and ferocity under the effect of friction, but also to reach the needs of the average roughness.
Spray rust, can extend the appearance of physical adsorption tube effect, and can enhance the appearance of the pipe coating mechanical adhesion effect. Consequently, the pipeline corrosion spray rust rust fantasy method. Generally, blasting (sand ) rust inside the tube first appearance for disposal, blasting (sand) is mainly used for pipe surface rust surface disposal.
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