Kugadzirwa kweinotonhora yekudhirowa peturu yekupwanya chubhu inogona kutonhora-yakakungurutswa, inotonhora inokweva, inotonhora-inodhonzwa, inotonhora-musanganiswa kugadzirwa. Uchishandisa maitiro ekudhirowa, chishandiso chiri nyore, mari shoma, kushanda kuri nyore uye kugadzirisa uye zvichingodaro. Asi iyo drawback inhanho yepakati yevakawanda, mutengo wematanda. Kushandisa inotonhora process michina yakanyanya kuomarara, uye kuwedzera mari, asi inogona kuderedza maitiro epakati, kuvandudza goho, yakakwira simbi isina musono saizi yechigadzirwa, uye nekurongeka kwepamusoro, kunyanya kune yakakwirira-chaiyo isina musono uye yakanyanya kutetepa-yakakomberedzwa isina musono chubhu.

Nekuda kwezvisingakwanisi mill roll pass nenhamba uye mutengo wekupedzwa kwechigadzirwa yakatarwa haigone kuve yakawandisa; inotonhora-yakakungurutswa uye inotonhora inokwevewa majoini kugadzirwa kugadzira chigadzirwa chakapedzwa, nemhando yakanaka yesimbi yekugadzirisa kutenderera nguva ipfupi, kuderedza yepakati degreasing, kupisa kurapwa, kupera simba, Jiao yakatwasuka maitiro, kuchengetedza simba, kuderedza kushandiswa kwesimbi, kushomeka kwezvinhu zvinyoro uye. zvichingodaro. Petroleum cracking chubhu inogona kutonhora inokweva pickling acid, hydrochloric acid, yakasanganiswa asidhi, hydrofluoric acid nezvimwe zvakadaro. Carbon simbi uye alloy simbi isina musono zvakafanira sulfuric acid, yepamusoro-soro kabhoni structural simbi uye alloy simbi isina musono inokodzera hydrochloric acid.