Qhov hose yooj yooj yim uas yog siv cov yeeb nkab uas tsis muaj zog-rau cov yeeb nkab uas yooj yim, cov hlau hose tau ntsia rau hauv cov kua hluav taws xob los nruab rau kev sib txeeb ntawm kev sib txeeb ntawm cov yeeb nkab lossis tshuab thiab khoom siv, nqus lub zog hluav taws xob, thiab tuaj yeem ua si ntawm lub zog txo, suab nrov txo, thiab lwm yam., nrog kev yoojyim thiab lub cev nyhav. Corrosion tsis kam, nkees tsis kam, siab thiab kub tsis kam, thiab lwm yam.
