Hauj lwm lawm
Kev tsis
Khaub thuas-rub tawm cov hlau xaim hluav taws xob tsawg yog tsim los ntawm cov roj carbon steel kub nrog txoj kab uas hla nrog 3, 4, lossis 5 hli ntawm chav tsev kub los ntawm kev tuag. Cov txheej txheem kos khaub ncaws txias ua rau ua haujlwm hnyav, yog li nce nws lub zog. Khaub thuas-twv cov xaim hluav taws xob tsawg
Cim npe nrov: SAE1008 rau cov screws thiab rivetts, cov chaw tsim khoom, chaw tsim khoom, chaw tsim khoom, muag, hauv Tshuag, ua qauv dawb, ua hauv Suav
