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The seamless square pipe is a square steel pipe with four corners and a square steel pipe cold-drawn and extruded from a seamless steel pipe. There is an essential difference between a seamless square pipe and a welded square pipe. Steel pipes have a hollow section and are used in large quantities as pipes for conveying fluids.
The seamless square pipe is a square steel pipe with four corners and a square steel pipe cold-drawn and extruded from a seam
