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焊接材料冷轧薄钢板板厚:1.2 mm焊接方法点焊化学成份C:0.115Si:0.228Mn:0.408S:0.020P:0.021
Welding material Cold-rolled steel Sheet thickness: 1.2 mm Welding method Spot welding Chemical composition C: 0.115Si: 0.228Mn: 0.408S: 0.020P: 0.021