Koharu Iron And Steel (Shandong) Group Co.,Ltd

ERW Pipe

The ERW steel pipe is also known as straight joint pipe.  According to the wall density, the bonded tube is categorized into typical types and thick-walled types.  We can offer items with personalized wall thickness according to customers’ particular requirement with a thickness deviation of no more than 0.25 mm.

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SSAW Steel Pipe

It is made by rolling low-carbon carbon structural steel or low-alloy structural steel strip according to a certain spiral angle (called forming angle) into a tube blank, and then welding the tube seam together.

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