Iityhubhu zentsimbi ezingenamthungo ngeenjongo zolwakhiwo, iityhubhu zentsimbi ezingenamthungo zezakhiwo zoomatshiniGB/8162-2008Umgangatho. izinto eziphathekayo zibandakanya Umgangatho ophezulu we-carbon steel kunye nentsimbi ephantsi ye-alloy, njenge-10,20,35,45 kunye ne-Q345, Q460, Q490,42CrMo, 35CrMo.