作废 SY/T 4071-1993
管道下向焊接工艺规程(附条文说明) 管道下向焊接工艺规程(附条文说明) Welding procedures for vertical down stick welding of pipes
发布日期:1993-09-09
实施日期:1994-03-01
分类信息
标准简介
相似标准/计划/法规
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1/8至3/4“厚E6010(垂直上坡)焊态碳钢(M-1/P-1/S-1 第1组或第2组)的保护金属极电弧焊标准焊接工艺规范 主要用于管道应用
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管道条文焊接工艺

最后更新时间 2025-08-29