Cov khoom siv hauv paus yog ua los ntawm cov hlau zoo txias-kuav los ntawm Wuhan Iron thiab Steel Co., Ltd. thiab Panzhihua Hlau thiab Steel Co., Ltd series ntawm cov txheej txheem suav nrog kev kho cua sov nitrogen, thermal rwb thaiv tsev tempering thiab tiv thaiv xeb Qhov qhib yog 30% -40% rau 2.0 thiab qis dua Qhov qhib tus nqi siab tshaj 2.0 yog 40% -48%, thiab cov khoom tiav yog nruj me ntsis tshuaj xyuas kom zoo.