I-steel grate ngokuvamile yenziwe ngensimbi ye-carbon, futhi indawo engaphezulu ifakwe i-hot-dip galvanized, engavimbela i-oxidation.Kungenziwa futhi ngensimbi engagqwali.I-steel grating inomoya, ukukhanya, ukuchithwa kokushisa, i-anti-skid, i-explosion-proof nezinye izakhiwo.