Ob chav-chaw nres tsheb tsis siv neeg molding tshuab muaj ntau yam kev siv hauv kev lag luam casting, thiab nws qhov zoo yog feem ntau cuam tshuam rau hauv cov hauv qab no: 1. Txhim kho kev tsim khoom: Lub chaw nres tsheb ob qhov tsim ua rau lub tshuab moulding tsis siv neeg tuaj yeem thauj khoom, ncuav, qhib, thiab tshem tawm t ...
Nyeem ntxiv