1,aluminium housing, metal outer covering. 2,extrusion aluminium CNC machining 3,ISO9001 certified ... , aluminum crust,aluminium power case,aluminium housing, metal outer covering,alumnium out casing. Material; A 6063Aluminium alloy composition: AlloySiFeCuMnMgCrZnTiOtherRemain60610 ... Jinrui Aluminium Industry Co., Ltd. built in 1993, we covering an area of 10,000 square meters with graceful environment ...