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large diameter seamless steel pipes |
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large diameter seamless steel pipes |
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seamless steel pipes 2.large diameter and thick wall 3.size: 8" to 16" 4.thickness of sch.std,xs,xxs email: bj3@qcco.cn skpe: fanghuan115 msn: fanghuan115@hotmail.com mob phone : 86-18210015579 |
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seamless steel pipes 2.large diameter and thick wall 3.size: 8" to 16" 4.thickness of sch.std,xs,xxs email: bj3@qcco.cn skpe: fanghuan115 msn: fanghuan115@hotmail.com mob phone : 86-18210015579 |
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