4Ulawulo olutsha
I-Shanghai 4New Control Co., Ltd. igxile kuphando kunye nophuhliso lokupholisa i-oyile kunye namanzi kunye nokucoca, ukusika ukucocwa kwamanzi kunye nokuhlaziywa, ukususwa kwe-oyile kunye ne-scum, ukwahlukana kweoli kunye namanzi, ukuqokelelwa kwe-oil inkungu, ukuchithwa kwe-chip, ukuthuthwa ngokufanelekileyo kolwelo olungcolileyo lwe-chip. , ukucinezelwa kwetshiphu yenkunkuma, ukujiya kwenkungu yerhasi kunye nokubuyisela.