Impeta

Agace aho umukufi ahurira na kashe ya peteroli itunganywa binyuze "gusya hejuru" hamwe na "chromium plaque (Cr)".

Ibyiza: Ubuso bwubuso bugera kuri Ra0.4 ~ Ra0.8, kandi ntabwo byoroshye kumeneka amavuta mugihe uhuye na kashe ya peteroli. Ubuso bushyizweho na tekinoroji ya chromium (Cr), hamwe n'uburemere bwa dogere zirenga HRC48, bigatuma ikoreshwa igihe kirekire nta kwambara no kurira, kandi ubuzima bwa kashe ya peteroli ni ndende.