Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Kupfuura: Chimwe chezvinhu zvinokosha zvikuru zvinoshandiswa nehydrochloric acid ndezvokushongedza simbi, kubvisa ngura kana simbi oxide scale kubva pasimbi kana simbi isati yagadziriswazve, yakadai sokubudisa, kuridza, galvanizing, uye dzimwe nzira. Hunhu hwehunyanzvi hweHCl pa18% yekusungwa ndiyo inonyanya kushandiswa pickling mumiririri wekubika kwecarbon simbi mamakisi.  Mubvunzo: Iperesentii yezvinyararire iri HCI apo inoshandiswa kubvisa makirasi ecarbon steel?
18 muzana