It is steel bar according to a certain distance and cross arranged and welded into the middle of a square latice with an iron and steel products .
25/3mm , 25mm/4mm , 25mm/5mm , 30/3mm , 30/5mm,32/3mm,32/5mm ,40/3mm………… 75/5mm,100/10mm
30mm x 32mm , 30mm x 60mm, 30mm x 100mm , 38mm x 100mm , 40mm x 100mm , 50mm x 50mm ,50mm x 100mm etc
black , hot dip galvanized
plain bar, serrated bar , I shape bar