Forgings feem ntau forged tom qab forging, txiav, kho cua sov thiab lwm yam txheej txheem. Txhawm rau kom ntseeg tau tias kev tsim khoom zoo ntawm cov tuag thiab txo cov nqi tsim khoom, cov khoom siv yuav tsum muaj cov khoom zoo, machinability, hardenability, hardenability thiab grindability; Nws yuav tsum tau ...
Nyeem ntxiv