Imveliso

Kule minyaka ingama-35 idlulileyo, i-Iron kunye nomzi mveliso wensimbi ukhe wabona utshintsho olubalulekileyo. Ngo-1980 716 i-MLn Tonenes yensimbi yaveliswa kwaye la mazwe alandelayo ayephakathi kweenkokeli: i-USSR (i-USSR (i-USDA (i-japan (i-16%), iJamani (i-6%), i-China (i-China (i-China (i-China (i-china (5% ), I-Itali (4%), iFrance kunye nePoland (3%), eCanada kunye neBrazil (2%). Ngokutsho koMbutho weStee yeStee yeHlabathi (i-WSA), ngo-2014 ukuveliswa kwehlabathi ifike kwi-1665 MLN Tonnes - i-1% ye-1% inyuka ngokuthelekisa ngo-2013. Uluhlu lwamazwe akhokelayo lutshintshile kakhulu. Uluhlu lwe-China kuqala kwaye lingaphambi kwamanye amazwe (i-60% yemveliso ye-rhulumente), isabelo samanye amazwe ukusuka kwi-2- 10 yi-2-8% - i-japan (6%), emazantsi I-Korea neRussia (5%), iJamani (i-Germany (3%), eTurkey, eBrazil naseTaiwan (2%) (jonga umfanekiso 2). Ngaphandle kwe-china, amanye amazwe awomeleze izikhundla zabo kuMphezulu-10 zi-India, eMzantsi Korea, eBrazil naseTurkey.

Ukuselwa

Insimbi kuzo zonke iindlela zayo (i-iron yentsimbi, intsimbi kunye nentsimbi eqengqelekayo) zezona zinto zisetyenziswa kakhulu kuqoqosho lwehlabathi. It retains the leading place in construction ahead of wood, competing with cement and interacting with it (ferroconcrete), and still competing with new types of constructional materials (polimers, ceramics). Kangangeminyaka emininzi, ishishini lobuNjineli lisebenzisa izixhobo ezinzima ngaphezu kwawo nawuphi na omnye umzi mveliso. Ukusetyenziswa kwentsimbi yehlabathi kubonakaliswa yimo ephezulu. Iqondo lokukhula eliphakathi lokusebenzisa ngo-2014 yayiyi-3%. Ireyithi yokukhula esezantsi inokubonwa kumazwe aphuhlileyo (2%). Amazwe asaphuhlayo anenqanaba eliphezulu lokusebenzisa intsimbi (i-1,133 mln tonnes).