Cov khoom siv hlau tuaj yeem tsim cov qib sib txawv ntawm oxidation thaum lub sijhawm, txawm tias nws yog hlau, nyiaj, lossis kub kub. High-purity kub tseem tuaj yeem poob nws cov lus ntxig thaum hnav rau ntev, npog rau saum npoo nrog lwm impurities.
Peb tau tsau cov qaj nyom cob rau hauv cov dej ntsev zoo rau 48 teev, tso cai rau nws kom corrode thiab oxidize. Tom qab sim ntau txoj hauv kev los ntxuav qhov ua kom rov zoo sai, thaum kawg pom tias" sib tsoo cov pas nrig nyiaj &; yog zoo heev. Cov nyiaj xim nyiaj muaj ob sab, sab tuab yog siv los zom cov oxide thiab stains ntawm cov hlau, thiab sab nyias yog siv rau polishing. Tom qab polishing, nws' s laj siab!