Cold ua hauj lwm tuag steel yog tsuas yog siv rau stamping, blanking, sib sau, dabtsi yog khoov, txias extrusion, txias drawing, hmoov metallurgy tuag, thiab lwm yam. Nws yuav tsum tau siab hardness, siab hnav kuj thiab txaus toughness. Feem ntau muab faib ua ob pawg: hom dav dav thiab hom tshwj xeeb. Piv txwv li, lub ...
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