01 JIS HSS Fluteless Thread Forming Kais
1. Xov sib sau hom suab, tsis muaj nti ua, cov nyhuv ua tiav zoo yog qhov zoo. 2. Haum rau cov khoom uas tsis tshua muaj hardness thiab muaj zog yas, ob qho tib si los ntawm lub qhov ua thiab qhov muag tsis pom qhov txheej txheem ...