Game da tsaftacewar bututun mai:
Ana share bututun man da ba su da tushe kuma sun isa wurin sarrafa shi.Kafin a fara aiki na yau da kullun, dole ne a tsaftace tabon mai, ƙasa mai lemun tsami, tsatsa sikelin oxide da tsohon rufi a saman ciki da waje na bututun.Hanyoyin kawar da tsatsa sun haɗa da manual, inji, feshi, pickling, da dai sauransu. A baya, hanyar spraying da aka yafi amfani da tsatsa kau da oxygen bututun.Yanzu, ana amfani da pickling don cire tsatsa, kuma tasirin yana da kyau sosai.Lokacin tsaftacewa tare da iska ko ruwa da aka matsa, saurin matsa lamba na ruwa ko iska zai iya kaiwa 15x20m / s, wanda zai iya cire datti a saman bututu, amma ba zai iya cire tsatsa ba, sikelin oxide, burr, ƙwayar walda da ƙwayar simintin gyare-gyare.