Yuav Ua Li Cas Txhim Kho Cov Khoom Siv Hlau Casting Zoo hauv Cov Foundries Loj
Yog tias cov chaw tsim khoom loj loj xav tau cov khoom zoo thiab cov khoom zoo, lawv yuav tsum pib los ntawm qhov chaw, tshwj xeeb tshaj yog cov khoom siv raw.Tsis tas li ntawd, txhua txoj kev xav tau kev saib xyuas ntxiv, tshwj xeeb tshaj yog ua qauv, pwm, melting thiab pouring, thiab kev kho cua sov.Ib...
nyeem ntxiv