PC cover for the Teijin material, impact resistance, high transmittance, excellent mixing effect, and no spot, no pull marks, no aperture, no waves pattern, etc., with anti-UV and flame retardant V0 results. PC cover classification: 1, transparent cover 2, the spread of cover, including 7 #, 8 #, 10 #, and its transmission rate was 88%, 85%, 79%; 3, hood stripes. Packing: PC cover and aluminum are used compact stretch into the carton after tying to avoid causing damage to the product in transit. Built 6063 aerospace aluminum, pipe wall thickness, not easily deformed, good heat dissipation.