Case Kev tshawb fawb
Kev tuag casting yog txheej txheem txheej txheem hlau, uas yog tus cwj pwm los ntawm kev thov kev kub siab rau lub tshuab hlau uas siv cov kab noj hniav ntawm cov pwm. Cov txheej txheem no me ntsis zoo ib yam li kev txhaj tshuaj molding. Feem ntau cov ua tuag yog hlau tsis muaj, xws li zinc, tooj, txhuas, magnesium, txhuas, thiab lawv cov alloys. |