1.Ukumelana nokugqwala okuhle, ukumelana nokugqwala nge-sulfur dioxide, 60% i-hydrofluoric acid, i-acetic acid ene-concentration engaphansi kuka-80%, kanye no-15% kuya ku-65% sulfuric acid.Izinga lokushisa eliphezulu elivumelekile ngu-140°C.
2.Easy roll, forge noma weld.Kodwa-ke, inezindawo ezithambile, amandla aphansi emishini, ukuminyana okuphezulu, kanye nokuhamba kahle kwe-thermal.Uma kunesidingo, kufanele iboshwe ngamapayipi ensimbi ukuze kwandiswe ukumelana nokucindezela kwayo.Lapho uyifaka, kufanele ifakwe kumkhombe wokhuni, noma ifakwe emgodini owenziwe ngamapayipi ensimbi ahlukanisiwe noma insimbi ye-angle ukuze ivimbele ukuthi ingawohloki futhi igxumeke.