shield arc welding meaning in Chinese

封闭电弧焊

Welding procedure specification for co2 shielded arc welding
二氧化碳气体保护焊工艺规程
Carbon steel electrodes and rods for gas shielded arc welding
气体保护电弧焊用碳钢焊条和焊棒
Low - alloy steel electrodes and rods for gas shielded arc welding
气体保护电弧焊用低合金钢焊条和焊棒
Welding wires for gas shielding arc welding of carbon and low alloy steels
气体保护电弧焊用碳钢低合金钢焊丝
Non gas shielded arc welding
无气体保护电弧焊

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