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In a separate use or for the thick-walled tube welding, heat-resistant steel should use low hydrogen electrodes.
在单独使用或用于厚壁管焊接时,应选用低氢耐热钢焊条。
youdao
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In a separate use or for the thick-walled tube welding, heat-resistant steel should use low hydrogen electrodes.
在单独使用或用于厚壁管焊接时,应选用低氢耐热钢焊条。
youdao