Douai is usually tested to control the physicochemical and microbiological stability in order to meet the requirements of the beauty makeup industry. Having been exquisitely ground and polished, it looks great in its appearance
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The mechanical parts of Douai , mainly electrode current collector foils, tabs to take off the current, external terminals, the case, and seals, are specially designed to meet safety targets. The product is convenient to fix and hard to shift
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The design of Douai is carried out by a team of professionals who keep innovative concepts in mind to make sure it can go with the service flow. The heavy-duty materials with precision engineering can ensure its durability for long service time
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Before production, the electrode materials of Douai are carefully handled to prevent them from coming into contact with each other. Because contamination between the anode and cathode materials will ruin the battery. It is characterized by high dimensional stability
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Douai has been strictly tested for evaluating conformance to quality over various footwear parameters. These include visual, chemical and physical tests. It is characterized by oxidation resistance and not easy to get rusty
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It is able to withstand large shock loads and works in harsh conditions. Its structure is finely processed and the impact capacity is enhanced by adding impact stabilizer. The center of the product is highly consistent