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