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我厂生产的家用缝纫机零件过线夹板(如图1所示),经过落料拉深冲孔冲圆坑复合工序一次成形,多年来经大批量生产考验,效果良好。
I plant production of household sewing machine parts over the splint (shown in Figure 1), after blanking deep drawing punching Chong-pit composite process a forming, over the years by the mass production test, the effect is good.