... 3Environmental-friendly, never rust Cast aluminum door,Cast aluminum explosion-proof doors, Xiamen Chen-Chi Doors Industry Co., LtdOur factory ... shock resistance,aniti-moth,keeping warm, moisture-proof, heat insulation,wear-resisting, flame retardancy,anti-mildew,easy to clean2. ... be integrally cast. 2, Environmental-friendly, never rust.3, Great and elegant appearance.4,The world patent .Suitable ...