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. Through hardening treatment, it is sturdy enough
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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. The edges of the product have been machined to be smooth
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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. It is popular for its good heat-insulated performance
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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. The product has the advantage of high strength
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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. Adopting high-quality imported stainless steel, it has a long service life
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One of the focusing points of Douai is to check every detail of the product. The product has a high-hardness surface