Txhim kho qhov pom tseeb thiab kev ua haujlwm kom tau raws li ultra- qis emission thiab siab -purity yuav tsum.
Nthuav daim teb daim ntawv thov, yoog mus rau huab cua xws li kub, siab siab, thiab muaj zog corrosion.
Txo kev siv hluav taws xob thiab cov nqi khiav lag luam ntawm cov tshuab lim los ntawm kev ua kom cov khoom siv tsis zoo thiab kev ua neej nyob.
Txhawb kev loj hlob ntsuab los ntawm biodegradable, rov ua dua tshiab, thiab cov khoom lim dej zoo ib puag ncig.
Tsav cov thev naus laus zis kho dua tshiab, ua kom cov khoom ntse ntse thiab ntau yam khoom pom.
Txhim kho kev lag luam kev sib tw, qhib kev lag luam tshiab thiab kev siv los ntawm kev tsim kho tshiab.
