Qhov zoo ntawm iav ntim ntim hauv thaj tsam ntawm kev ntim dej haus

1. Lub raj mis iav muaj kev nyab xeeb thiab huv si, muaj kev tiv thaiv corrosion zoo thiab acid corrosion kuj, thiab yog tsim rau ntim cov khoom siv acidic (xws li cov kua txiv hmab txiv ntoo, thiab lwm yam);

2. Tsis tas li ntawd, vim tias cov iav fwj tsim nyog rau kev tsim cov khoom siv tsis siv neeg puv cov kab ntau lawm, kev txhim kho cov iav fwj hauv tsev tsis siv neeg filling tshuab thiab cov cuab yeej siv tau zoo heev, thiab kev siv cov iav fwj rau ntim cov txiv hmab txiv ntoo thiab cov kua txiv hmab txiv ntoo muaj qee yam kev tsim khoom. qhov zoo hauv Suav teb.