1.Nws tsuas yog siv rau inlaying steel ntawm cov neeg kho tshuab hniav thiab PLANER kom pab txhim kho vuam muaj zog.
2.Nws tau siv los ua cov ntoo khaws cia, vuam flux thiab tshuaj fluorine kho tshuaj kho mob rau cov dej haus.
3.Nws siv tau cov tshuaj fluorides, cov pos hniav fluoride, cov tshuaj nplaum, cov duab kos thiab metallurging kev lag luam.
4.In txheej kev lag luam, nws yog siv los ua phosphaited presftator kom ruaj khov rau cov lus, kho kom ua kom zoo nkauj ntawm phosphalling zaj duab xis.
