Uloliwe wentsimbi yeyona nto iphambili kumzila kaloliwe.Icandelo likaloliwe ngokuqhelekileyo li-I-shaped, liqulunqwe ngamacandelo amabini ahambelanayo, kwaye kukho amacandelo angaphezu kwe-35 kaloliwe.Izinto eziphambili ziquka i-carbon C, i-manganese Mn, i-silicon Si, i-sulfur S, i-phosphorus P. Ubude obuqhelekileyo bentsimbi yensimbi yaseChina yi-12.5m kunye ne-25m, kunye neenkcukacha zomzila wensimbi yi-75kg / m, 90kg / m, 120kg / m. .