1. Cov qauv sib dhos ua ke, yooj yim rau kev sib txuas, nruab thiab disassemble ntawm qhov xav tau.
2. Qhov hla ntawm cov khoom txee yog qhov ua kom zoo, thiab ntau yam khoom siv yeeb nkab tuaj yeem raug xaiv los txhim kho cov kabmob muaj peev xwm.
3. Muaj cov rooj ntoo thiab cov phaj hlau rau kev xaiv laminates. Qhov siab ntawm kem yog muab nrog qhov kho qhov sib nrug txhua 50mm, uas tuaj yeem hloov kho ntawm cov khaubncaws sab nraud povtseg raws li qhov siab ntawm cov khoom.
4. Kev kho deg siv polishing, deg xeb tshem tawm, tshem tawm roj, electrostatic hmoov txau, thiab tuaj yeem txau raws li cov xim teev los ntawm tus neeg siv khoom, uas muaj qhov zoo ntawm cov xim zoo nkauj, tsis yooj yim rau oxidize, thiab yooj yim los ntxuav.
5. Tsawg peev peev, dav siv hauv factories, khw malls thiab lwm yam lag luam.
