Q345B无缝管大小口径厚薄壁无缝钢管厂家可折弯冲压加工

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Huayi (Tianjin) Steel Co., Ltd

Address:No. 2, Expressway Auxiliary Road, Jinghai Economic Development Zone, Jinghai District, Tianjin City
Tel:15620999922

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15620999922

Q345B无缝管大小口径厚薄壁无缝钢管厂家 可折弯冲压加工