1. Temperature Control: Kev tswj qhov kub thiab txias yog qhov tseem ceeb thaum smelting, dov, thiab annealing. Kev kub siab heev lossis qis qis yuav cuam tshuam rau cov khoom ntawm tooj liab, ua rau cov khoom tsis zoo. Kev ntsuas kub nruj thiab kev hloov kho raws li cov txheej txheem sib txawv yog qhov tseem ceeb.
2. Raw Material Quality: Ua kom cov khoom siv tooj liab zoo siv yog qhov tseem ceeb rau kev ua tiav. Cov neeg muag khoom muaj npe nrov yuav tsum raug xaiv, thiab cov khoom siv raw yuav tsum tau kuaj tsis tu ncua kom ntseeg tau tias lawv ua tau raws li cov qauv.
3. Kev Kho Cov Khoom Siv: Kev ua haujlwm ntawm cov khoom siv ncaj qha cuam tshuam rau kev ua haujlwm thiab cov khoom zoo. Kev tu thiab tu tsis tu ncua yog tsim nyog los ua kom cov cuab yeej ua haujlwm tau zoo thiab txo qis qis.
4. Kev Tiv Thaiv Ib puag ncig: Kev ua tooj liab ua rau cov pa khib nyiab, dej khib nyiab, thiab cov khoom pov tseg. Kev tiv thaiv ib puag ncig zoo yuav tsum tau ua kom txo qis kev cuam tshuam ib puag ncig, thiab cov kev cai ib puag ncig yuav tsum tau ua raws.