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| The experiment was carried out using TDI-500 AC-DC pulse welding machine, its maximum output current is 500A. The welding technique of one-side welding with both-sides molding was used, and play-movement is 0.1mm.Mechanical properties were determined by CMT5105 standard tensile tests on small-scale specimens, which produced by MTS (China) Co., Ltd.when welding current is 50A, the weld joints are flat, smooth, clear scaly ripples on front face, the whole forming is beautiful and high quality on back face; 请问这段英语中表述对吗？有没有语法错误？麻烦了，谢谢 |
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