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SPIRAL STEEL PIPE

SPIRAL STEEL PIPE

Spiral steel pipe is a spiral seam steel pipe made of strip steel coil as raw material, often formed by warm extrusion and welded by automatic double wire double-sided submerged arc welding process. The spiral steel pipe sends the strip steel to the welded pipe unit. After rolling by multiple rollers, the strip steel is gradually rolled up to form a circular pipe blank with opening gap. Adjust the reduction of the extrusion roller to control the weld gap at 1 ~ 3mm and make both ends of the welded junction flush.

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