Cold rolling ntau lawm feem ntau muaj cov txheej txheem xws li pickling, dov, annealing, thiab tshuaj xyuas. Qhov chaw tsim khoom no muaj ntau yam kev txwv; dov quab yuam tuaj yeem tshaj 3,000 tons, thiab cov hlau sawb taug kev ntawm qhov nrawm mus txog 1,200 meters ib feeb- txhais tau tias txawm tias qhov hloov pauv me me hauv ib qho kev ntsuas tuaj yeem ua rau tag nrho cov kauj raug tshem tawm. Hauv kev cob qhia galvanizing, AI qauv tau hloov kho cua riam qhov siab thiab siab, ua tiav "3-gram ntaus nqi" (qhov twg qhov sib txawv ntawm zinc txheej hnyav ib square meter los ntawm lub hom phiaj tus nqi poob hauv ± 3 grams) ntau tshaj 99%.
Cov kev nce qib no tau daws cov teeb meem tseem ceeb-xws li vuam tsis ruaj khov, muaj lub siab nyiam rau txoj hlua tawg, thiab dov zeb vibration- yog li ua kom muaj txiaj ntsig zoo thiab siab - zoo dov ntawm ultra- siab- lub zog steel. Tsis tas li ntawd, peb tau tsim kho tus kheej siab -kev tswj cov thev naus laus zis rau cov duab thiab qhov ntev ntawm ultra-siab- lub zog steel. Peb tau qhia txog ntau yam kev sib koom ua ke zoo tshaj plaws tswj qauv-raws li thickness thiab huab hwm coj txaus tus nqi- rau tag nrho- sawv cev kev kwv yees thiab kev them nyiaj, nrog rau cov tswv yim tswj kev kwv yees. Cov txheej txheem no tau ua tiav 98.77% tus nqi ntawm thickness tswj qhov tseeb nyob rau hauv ib tug kam rau ua ntawm ± 1%, thaum phaj puab raug tau mus txog 5 IU.