Umtya wentsimbi ephezulu owenziwe ngentsimbi egoqelweyo kunye nobushushu obuphathwayo ukuze kwandiswe amandla okuqhawula kunye ne-ductility.Intsimbi ephezulu ebambekayo ibonelela ukomelela okongeziweyo kwekhefu kunye nokumelana nokothuka kwezicelo zakho ezinzima.Inketho enkulu yokupakisha efuna intsimbi yentsimbi.