Nrhiav ib tus neeg muag khoom txhim khu kev qha rau koj daim ntawv thov casting thiab forging? Saib tsis muaj ntxiv dua li Hanspire, lub tuam txhab ua lag luam hauv kev lag luam. Nrog cov ntaub ntawv pov thawj ntawm kev xa cov khoom zoo
Koj lub tuam txhab pab pawg muaj lub siab hloov pauv, hloov pauv tau zoo ntawm qhov chaw, koj tuaj yeem ua kom zoo dua ntawm qhov chaw nyob los daws teeb meem tam sim ntawd.