Kub dov steel coils yog siv los ua cov khoom siv raw, thiab cov khoom tiav yog dov tawv coils tom qab cov tawv nqaij oxide raug tshem tawm los ntawm pickling. Lub zog thiab hardness ntawm cov dov tawv coils nce thiab toughness thiab plasticity Performance index txo vim qhov txias ua hauj lwm hardening tshwm sim los ntawm tas mus li txias deformation, yog li cov stamping kev ua tau zoo yuav deteriorate thiab tsuas yog siv tau yooj yim deformed qhov chaw.
Rolled hard coil tuaj yeem siv los ua cov khoom siv raw ntawm cov nroj tsuag kub galvanizing, vim tias cov kub kub galvanizing yog nruab nrog cov kab annealing. Qhov hnyav ntawm cov coil hardened feem ntau yog 6 ~ 13.5 tons. Cov kub dov pickled coil yog txuas ntxiv dov nyob rau hauv chav tsev kub. Sab hauv txoj kab uas hla yog 610mm.
