The core issues relating to the design of Douai include many aspects such as health risk related to emerging parameters (chemical and microbiological), NOM removal, advanced treatment processes for new micro-pollutants removal, etc. The product is widely accepted for its abrasion resistance
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The anodes and cathodes materials of Douai are dealt with by our technical staff under complete procedures. These procedures include mixing, coating, compressing, drying, and slitting. It has been granted with CE, RoHS, TUV and other certifications
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Douai is constantly inspected. It is checked for issues in stitching, including conducting seam strength tests and checks for fraying, skipped stitches, open stitches, crooked stitches, and puckered seams. Optional accessories are available to customers' needs
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The production of Douai is highly sanitary. It has to be produced in a dust-free environment to achieve the best water treatment effect. It is widely used by Apple, IKEA, and other famous companies
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The raw materials of Douai are treated with several procedures. Materials enrichment, refining, and smelt process will be conducted to make the materials into a product with high purity. It receives popularity among customers from Europe, America, Middle East, and so on
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One of the focusing points of Douai is to check every detail of the product. Its surface is not to get rusty