MSS SP-97-2001 承插焊、螺纹、对焊端锻件支管台 Integrally Reinforced Forged Branch Outlet Fittings - Socket Welding,
标准简介
MSS SP-97-2001 承插焊、螺纹、对焊端锻件支管台 Integrally Reinforced Forged Branch Outlet Fittings - Socket Welding, Threaded and Buttwelding Ends
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