Qhov tseem ceeb:
1.Kev ntseeg tau zoo, kev ua haujlwm zoo heev thiab saib yooj yim;
2. Hluav taws xob tsav, qauv yooj yim, tsis muaj qhov hnyav siv.
3. tuaj yeem txuas PC rau cov zis
4. Hloov sib txawv hardness nplai;
Daim ntawv thov:
Haum rau quenching, quenching thiab tempering, annealing, chilled castings, malleable castings, hardness txiav txim siab ntawm hard alloy steel, aluminium alloy, tooj liab alloy, bearing steel, thiab lwm yam. txheej, tooj liab, aluminium alloy, nyias phaj, galvanized, chrome plated, tin plated khoom, bearing steel, chilled castings, thiab lwm yam.
