Although root over-burn of high alloy steel welding lines is not defined as defect by welding regulations,it significantly affects the life of welded pipes.
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释义
高合金钢焊缝根部的"过烧"虽然未被相关焊接规程定义为缺陷,但实际上对焊接管道的使用寿命有极大的影响。
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