Douai is produced in a process that is sustainable and uniquely revolutionary, and no harmful or toxic substances are involved. It has the advantages of temperature tolerance
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Douai is of reasonable design. It is created with high adaptability and functionality for different phone models by the in-house designers.
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Douai is of scientific design. It is carefully designed to improve water quality by the designers who have much experience in creating innovative and unique pool accessories. This product is characterized by its drop-in replacement
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Douai has been tested according to the requirements of international IEC/EN standards. It has been tested in terms of low-frequency phenomena (flicker and harmonics) and high-frequency conductive currents, voltage, and power. This product can last for five years or more
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Douai is produced under different sophisticated workmanship. The pattern or grain will be manually carved with great delicacy and the board will be cut with high precision within the tolerance of 0.2mm. There is less chance of electrolyte leakage
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The scope of usage of have been enlarged gradually due to its properties. This product is ideal for power tools and electric vehicles