I-grate yensimbi ngokuqhelekileyo yenziwe nge-carbon steel, kwaye umphezulu ushushu-dip galvanized, onokuthintela i-oxidation.Isenokwenziwa nangentsimbi engenasici.Igrayiti yentsimbi inokungenisa umoya, ukukhanya, ukuchithwa kobushushu, i-anti-skid, i-explosion-proof kunye nezinye iimpawu.