... energy-saving product. The precision can be 8-level. No-cut inside. It is light and rustless and loDescription of aluminium ... protection, Energy-saving, High strength, Heat resistance, Noise reduction, Non–corrosive, Firm and durable, Resistance aging, Long service lifePackingPlastic film inside,plastic ... . T5 6063 series Aluminum Motor Shell with super quality, no-cut inside, several natioan patent