Douai is strictly scrutinized and tested. It is required to test in terms of its cutting, stamping, extrusion, anodizing, and polishing quality and overall mechanical properties. Any scratch on its surface can be easily polished to hide the scratch
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The design of Douai is the application of various disciplines. They include mathematics, kinematics, statics, dynamics, mechanical technology of metals and engineering drawing. It is lightweight yet very tough, which makes it not buckle under the great weight
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Douai has passed the following test. It has been tested in terms of statics, dynamics, material strength, vibration, reliability, fatigue, etc. It will not result in stains which can affect the surrounding clean area
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Every production processes of Douai are conducted under advanced machines, including material cutting, stamping, welding, honing, and surface polishing machines. It is also widely used in the aviation industry due to its added strength without adding too much weight
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The check for Douai is strictly executed. All its components are thoroughly inspected for dimension specification and chemical composition. The surface of it has been treated with special polishing, making it retain its original shine after many times of uses
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Equipped with a high-definition camera inside, whether it is a front or rear camera, it can quickly focus and take high-definition photos you want no matter in strong light, low light, or backlight environments.