... .7mm Material:GI steel,aluminum plate,mild steel Mini expanded metal Hole size:1.5*3mm,3*6mm,4*8mm Thickness ... ,0.7mm Material:GI steel,aluminum plate,mild steelMini Expanded Metal Material: low carbon steel, stainless steel, aluminum plate, brass plate ... Characteristic: The expanded metal process takes regular steel and expands it into a diamond pattern, making it stronger, lighter, more rigid, and ...