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PVC pem teb lev qhia thiab ntau lawm
PVC ntaub pua plag, tseem hu ua polymat, muaj qhov zoo ntawm kev yoog raws, kev laus ua haujlwm, kev tu yooj yim, siv tau yooj yim, feem ntau yog siv hauv tsev so, tsev so thiab tsev neeg pem hauv ntej ko taw lev.PVC spinneret ko taw ncoo los ntawm PVC hauv qab ncoo thiab spinneret composite tiav, PVC hauv qab ncoo feem ntau yog mos ...Nyeem ntxiv
