... advanced customized air conditioner heating tube shelf bracket, welcome to contact us.product specificationsItem.NOHHC-4314SNameBracketMaterialIron, Stainless Steel, Brass, Al, Copper, etcSurface treatmentZinc, Copper Nickel ... heater,water heater tube fixing bracket,air conditioner,electric iron cover.3.The materials of terminals are stainless steel, steel, copper, brass, aluminum, etc ...