雅安121*14mm的低温管道用无缝钢管生产厂家 www.myhejinguan.com www.316lbuxiugang.com 规格 89×4.5-8-10-12-14-16-18-20 95×4.5-6-8-10-12-14-16-20 102×4.5-5-6-7-8-10-12-14-16-20 108×4.5-5-6-7-8-10-12-14-18-20-22 114×4.5-5-6-7-8-10-12-14-18-20 121×4.5-5-6-7-8-10-12-14-16-20 127×4.5-5-6-7-8-10-12-14-16-20 133×4.5-6-8-12-14-16-18-20-25-30 140×5-6-7-8-9-10-12-14-16-20-22 146×4.5-6-8-12-14-16-18-20-25-30 152×4.5-6-8-12-14-16-18-20-25-30 159×4.5-6-10-12-14
雅安121*14mm的低温管道用无缝钢管生产厂家
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