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柱子接头部分采用电渣压力焊，电渣压力焊为几级接头？ - 工程施工 - 项目管理 - 氿上知道
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满意答案
2. 对焊缝等级来说，原则是受拉等级高于受压，受动力的高于受静力的。
3. 对接焊缝一般需要做无损探伤（或部分需要）。故一般对接焊缝的焊接等级为二级或一级，不小于二级。
郁可唯
回答于：2013-09-17
共2条回答