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lsaw line pipe erw welded carbon

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 · Web viewE-mail:[email protected] Contact:Dai Keke Jiangsu Guoqiang Zinc Plating Industry Co., Ltd. was established in 1998. It is one of the leading manufacturers in China for ERW steel tubes, galvanized tubes, galvanized steel structures, highway guardrails. Annul output is around 800,000 metric tons. [DOC] · Web viewERW pipes and hollow sections under production specification as per GOST8645-68 / GOST 8639-82 / COST 10704-91 / GOST 3262-75 / EN 10219 / EN 10305-5 made of mild steel like S235GR (Steel Grade 1-3PS as per GOST380-2005), size range: