gas pressure welding of reinforcing steel bar
[转载]钢筋焊接及验收规程 ... 钢筋电渣压力焊 electroslag pressure welding of reinforcing steel bar 钢筋气压焊 gas pressure welding of reinforcingsteel bar 预埋件钢筋埋弧压力焊 submerged-arc pressure welding of re-infoncing steel bar at prefabrecated components ...
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