electric welding equipment ; electric soldering equipment
电焊接器具 electric welding apparatus
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活接式电焊训练夹具是制做用于采油厂电焊工累积带水焊接经验，提高带水焊接技术的一种训练器具。
Loose joint electric welding training clamp is a training apparatus that used for making the cumulative oil production plant welder welding training activities and improving water welding technology.
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