1.Qhov khoom iav muaj cov teeb meem zoo thaiv, uas tuaj yeem tiv thaiv cov pa thiab lwm lub sijhawm tuaj yeem tiv thaiv cov ntsiab lus ntawm cov ntsiab lus los ntawm kev sib tw ntawm cov huab cua;

2.Qhov iav lub raj mis tuaj yeem siv ntau zaus, uas tuaj yeem txo cov nqi ntim;

3.Qhov iav tau yooj yim hloov cov xim thiab pob tshab;

4.Glass fwj muaj kev nyab xeeb thiab huv, muaj zoo corrosion tsis kam, thiab haum rau kev ntim ntawm acidic tshuaj (xws li kua txiv ntoo (thiab lwm yam).