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Spiral steel pipe uses hot-rolled strip steel as raw material, and the steel strip is welded into a spiral shape by automatic submerged arc welding. Its main process steps include forming, welding, sizing, straightening, trimming and quality inspection.

Spiral steel pipe is a welded pipe, which is usually used in oil and gas, water supply and drainage projects. It is made by rolling the steel strip into a spiral shape and welding it with internal and external welds, hence the name "spiral steel pipe".