Kune zviuru zvemazi eAlloy Steel Grades uye makumi ezviuru zvedzidzo yakashandiswa pasi rese. Kubuda kweAlloy Steel Akaunti kweanenge gumi muzana yeiyo yakazara simbi yekubuda. Icho chinhu chakakosha chesimbi chinoshandiswa zvakanyanya mukuvaka kwehupfumi hwenyika uye nyika dzenyika dzekudzivirira.
Kubva kuma1970s, kuvandudzwa kweAlloyyakakwirira-simba nziziPasi rese apinda munguva itsva. Zvichienderana nekudzora tekinoroji uye microlloying metallurgy, yemazuva ano-alloy-lead-simba ngozi, iyo microalloyed simbi, yakavezwa pfungwa.
Muma1980, kukudziridzwa kwakasiyana siyana kweminda yakawanda uye kwakakosha kwebato rezvematongerwo enyika. Zvinoratidzawo kuti kutsvagurudza kwakakosha kwesimbi-yakaderera yave kukura uye isina kumbobvira yaitika.Izwi idzva reAlloy Dhizaini.