Ua ntej, nws muaj txiaj ntsig zoo los kho thiab tswj cov ntsiab lus ntawm oxidisable ntsiab lus thiab kab kawm, uas tuaj yeem txhim kho cov txiaj ntsig zoo ntawm cov hlau, txo tus nqi smelting, txo lub sijhawm smelting thiab tswj cov muaj pes tsawg leeg.
Secondly, nws plays lub luag hauj lwm ntawm purifying steel thiab ib feem hloov qhov xwm thiab daim ntawv ntawm inclusions, kev txhim kho cov hlau zoo thiab casting mob.
Thib peb, cov kab tseem ceeb tau muab faib ua ob hom kev siv twj tso kua mis sab hauv thiab sab nraud tso tawm, cov cuab yeej siv tshuab yuav tsum tau noj cov kab yog yooj yim thiab txhim khu kev qha, npog thaj tsam ntawm tsawg dua, tshwj xeeb tshaj yog nyob rau hauv cov twj tso kua mis hom tub ntxhais kab yog ntau adaptable rau lub siv qhov chaw ntawm qhov chaw nqaim.
