Each production stage of Douai is strictly conducted by advanced machines including CNC lathes, milling machines, grinding machine, cutting machines, and bending machines.
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The design of Douai is completed by strictly adopting the solar principle. The knowledge of photoelectric chemistry and photodecomposition reaction are used in order to make the most of solar energy.
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The manufacturing process of Douai includes profiles extruding, cutting, CNC machining, deburring, and surface treating. All of these procedures have to be inspected by the QC team to meet the highest requirements in the heat sink industry.
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Douai has undergone a series of the assessment process in terms of its sizes (width, height, length), colors, and resistance to environmental conditions (rain, wind, snow, sand storms, etc.)
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The quality of Douai is guaranteed by a series of tests. It has gone through inspection on its seam force, tensile strength, fiber stiffness, fiber resilience, etc.
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Shanghai Douai Lingerie Co., Ltd. Not only insist on using high-quality and reasonably priced raw materials for manufacturing, but also strictly control every link of product production to ensure that all raw materials can be fully utilized, reduce the loss rate of raw materials, and promote the production of Shanghai Douai Lingerie Co., Ltd. 10058] Compared with other products in the market, it has a more prominent price advantage.