1. Cov khoom siv sib txawv: cov rhawv ntoo yog cov ntoo, thaum ua cov hlau ua cov hlau.
2 . T nws cov nyhuv yog qhov txawv: txiv hmab txiv ntoo thiab zaub rau ntawm cov ntoo ntoo, nws yuav zoo li txawv, tab sis muab tso rau ntawm cov khoom siv hlau yuav tshwm .
3 . T nws thov ntau yam sib txawv: cov ntoo hauv txaj yog qhov tsim nyog rau cov khw yuav khoom thiab tsev loj, thaum hlau txee cov khoom lag luam yog qhov tseem ceeb rau cov tsev khaws khoom loj.
4 . T nws txau txheej txheem sib txawv: qhov saum npoo ntawm lub txee ntoo tau kho nrog epoxy resin electrostatic txau, thiab tom qab cov hlau ntim cov khoom ua tiav, txhua yam yog ua los ntawm kev sib tsoo, xaiv, phosphating, tsis siv neeg hmoov electrostatic txau, kom qhuav, thiab lwm yam cov khoom tiav.
5 . T nws cov txheej txheem tsim tawm txawv: txheej txheem ntoo ua tau zoo nkauj thiab dav, muaj ntau yam ntawm qhov tshwj xeeb, tau kawg, kuj tseem muaj zog, kev tsim qauv ntawm kev tsim qauv muaj cov huab cua ntawm lub sijhawm, thiab cov txee hlau yog ua los ntawm ob-sided punching ntawm lub vaj huam sib luag kaum sab xis steel, lub qhov deb yog 50 hli nrug Kev npaj kom ncaj hauv txoj kab ncaj nraim, cov kem yuav siv los txhawm rau laminate.