1)factory offer heavy hinge 2)material stainless steel, iron 3)used for heavy duty doors 4)delivery quickly The products introduction as following:1, products name:Stainless steel hinge2, Material:Stainless steel, copper, aluminum, iron3, Surface treatment:Electroplating: gold-plated, copper-plated, and zinc-plated Spraying: golden, white, rice white, black, rice yellow, silver4, Products ...