Tshaj tawm rau 2016-07-28 1.Dip spin txheej Qhov no yog qhov kev siv dav tshaj plaws rau txheej fasteners thiab stamping qhov chaw ntawm bolts, ceev, springs, screws.Ua ntej, muab cov khoom ua haujlwm uas tom qab kho ua ntej hauv lub pob tawb, dip txheej, tshem tawm cov xim ntxiv los ntawm centrifugal spinning, thiab tom qab ntawd cu ...
Nyeem ntxiv