Cov khoom siv:
Lub phaj tseem ceeb yog ua los ntawm 8 hli tuab cov khoom zoo ntshiab PP (polypropylene) board, muaj zog
acid thiab alkali tsis kam, thiab kev sib koom ua ke yog ua los ntawm kev cob qhia seamless vuam nrog cov
tib xim vuam pas nrig, muaj zog acid tsis kam, cuam tshuam tsis kam, tsis muaj corrosion, tsis xeb.