1.Material is iron 2.Life time :10years 3.Thickness: 0.6mm/0.7mm/0.8mm and1. ... . 4.MOQ: 5000pcs 5,L/C,T/T Metal box,switch box ,knockout box,electrical equipment boxWe are a professional manufacturer ... of metal box,switch box , and other hardware accessories. 1.Material is iron2.35mm ...