Kev lag luam Petrochemical
Cov hluav taws xob zoo li qub yog ib qho ntawm qhov ua rau hluav taws kub hauv petrochemical thiab lwm yam kev lag luam thiab qhov chaw uas muaj cov pa taws kub hnyiab, ncu, plua plav, thiab roj paug feem ntau tshwm sim. Yog li ntawd, kev tshem tawm kev nyab xeeb ntawm cov plua plav thiab cov roj stains yuav tsum muaj cov ntaub so ntswg kev lag luam, uas tsis yog tsuas yog ua rau kev tshem tawm ua haujlwm zoo dua, tab sis kuj muaj cov teebmeem tiv thaiv zoo li qub kom tsis txhob muaj hluav taws kub.
