Kulesihlanu esingekho, kunesi simulani esizikhonzwa ngokushesha, futhi amaxesha amahle akukhula. Amabhara amacala wethimayini azifinyelela izindaba ezidinga lokuhlola, bonke abanye abaningi ngenkathi ukuba kuhluke umthengisi omncane wezintathu zemoto nge-Gr2 ethimayini okulandelana nokuphucumisa, noma ibhara lemedikesheni lokugcina iimbizo. I-Gr2 ethimayini, elikhona ngesigqibo sokubhala, sikhona kakhulu lokuhlola amandla amabheduka, phakathi kwamaxesha obungaphansi, ngenxa yalokho amabhara amacala we-Gr5 athole amandla angaphandle komoya ofumanekayo. TJYCT Steel uhlanganisiwe nezindawo eziphumaphi zombhalo ukuthiwe amabhara amacala wethimayini amahlukileyo ezidinga imithombo ye-ASTM kunye ne-ISO. Kwiqhutywa lamanje noma kwiqhutywa eliphakamisileyo, shintshentsha umbhali wesinqumo sakho ngenkinga yokubheka kunye nokuthuthukiswa kakhulu.