Gubar ulu
Sulun gubar sirara ce ta ƙarfen gubar wanda aka murɗe shi da sauƙi zuwa siffar igiya.Ana amfani da ulun gubar don dalilai na lalata.Don hana zubewa a gidajen abinci ko don maye gurbin dalma da aka darkake wajen gyara aikin ƙarfe zuwa kankare.
Lead ulu yana da kyakkyawan ductility kuma yawanci ana amfani dashi azaman kayan haɗin gwiwa.Gudun gubar yana da sauƙin amfani kuma ana iya amfani dashi kai tsaye ba tare da maganin dumama ba.Dangane da girman rata, ulun gubar yana jujjuya kai tsaye cikin igiyar gubar da aka cika kai tsaye.Ana amfani da ulun gubar sosai a makamashin nukiliyada sauran masana'antu kamar walda, kayan wasanni, kayan aikin likita da sauransu.
