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Polished DIN API 5L ASTM A52 4"DN 1800 1620mm Large Diameter Welded Spiral Steel

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Zhong Neng Steel Union(Qingdao)Heavy Industry Co.,Ltd

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Polished DIN API 5L ASTM A52 4"DN 1800 1620mm Large Diameter Welded Spiral Steel

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Polished DIN API 5L ASTM A52 4"DN 1800 1620mm Large Diameter Welded Spiral Steel

ZHONGNENGGANGLIAN Application Product Description Product name Spiral Welded Steel Pipe Standard API 5L, API 5CT, SY/T5037, SY/T5040, GB/T9711.1,GB/T9711.2, A, B, X42-X80, L175-L555,L245NB, etc. ...

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