Ua ntej, ib qho yooj yim preform yog tsim kom haum hydroforming yuav tsum tau, ua raws li los ntawm sealing thiab hydraulic shaping, zoo ib yam li inflating lub zais pa.
Tom qab ntawd, qhov saum npoo tau zoo polishing. Nrog sophisticated craftsmanship, tus kheej ua tiav ib daim iav zoo meej tiav.
Cov khoom tiav ntawm ntau qhov ntau thiab tsawg tau siv dav hauv kev kho kom zoo nkauj pej xeem.
