A straight seam steel pipe is a circular pipe made of flat steel bars or steel plates, and connected through a straight seam welding process.

A straight seam steel pipe is a circular pipe made of flat steel bars or steel plates, and connected through a straight seam welding process.

A straight seam steel pipe is a circular pipe made of flat steel bars or steel plates, and connected through a straight seam welding process.

A straight seam steel pipe is a circular pipe made of flat steel bars or steel plates, and connected through a straight seam welding process.

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