Txawm tias qhov precision casting muaj qhov tsis xws luag, xws li shrinkage kab noj hniav, trachoma, fractal nto, pouring qhov; Forgings ntawm qhov tod tes. Koj tseem tuaj yeem tso cov khoom tso rau hauv pem teb, thiab mloog lub suab ntawm kev sib tsoo, feem ntau yog lub suab ntawm cov casting muffled, lub suab forging ntau dua ...
Nyeem ntxiv