1.Aluminum alloy die cast housing 2.Surface treatment: coated for anticorrosion and antistatic after shot blast cleaning and chromate deactivation treatment. So it has good salt mist-proof and weather-ability property. 3.The groove of the product is embedded with metal screen to prevent radio interference and has a good grounding and shielding performance. 4.The product is sealed with silicon rubber strip and has good waterproof performance. It can bear temperature as high as 200 ℃ and as low as -80℃, with no distortion. Show More