Kev txhaj tshuaj molding yog cov txheej txheem tsim khoom siv dav siv los tsim ntau yam khoom yas, suav nrog khob, qhov chaw, ntim khoom, thiab lwm yam.Hauv kev txhaj tshuaj molding txheej txheem, kev daws teeb meem raws sij hawm thiab kev tswj xyuas zoo ntawm lub sijhawm tsim khoom yog qhov tseem ceeb los xyuas kom meej cov khoom zoo ...
Nyeem ntxiv