At present, steel rolling is widely used in industry, which mainly includes two types, namely hot rolling mill and cold rolling mill. Thiab muaj ntau yam khoom lag luam thiab cov kev sib txawv. Txawm li cas los xij, dov steel nyob rau hauv cov duab ntawm cov billet siab ua, yuav tsum tau txais los t......
Nyeem ntxivNyob rau hauv lub xov xwm niaj hnub no nias txoj siv sia ntawm cov hlua khi ntawm cov hlua khi, lub zog hniav ntawm cov tshuab hluav taws xob ib ncig ntawm lub tsev sib tw, lub zog ntawm cov kev sib tw ntawm lub tshuab hluav taws xob tau hloov mus rau sab saud thiab qis dua.
Nyeem ntxiv