常見(jiàn)例句Keywords cold extrusion technique;scrapless machining technology;resistance spot-welding straight electrode; 冷擠壓工藝;無(wú)切屑加工技術(shù);電阻點(diǎn)焊直電極;scrapless machining technology 無(wú)切屑加工技術(shù) 返回 scrapless