Douai is manufactured under several processes. Namely, it goes through mechanical drawing (auto CAD), stamping, coating, painting, drying, polishing, testing, and assembling. Adopting a recyclable Li-ion battery, it causes no pollution to the environment
Douai has been tested based on the following test regulations. They include energy efficiency, energy consumption, working temperature, startup time, etc. Treated by die-casting, Its structure is robust and firm
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Douai has been strictly tested. These tests include panels testing, plugs testing, voltage testing, and frequency testing and customer-requested testing. Adopting a recyclable Li-ion battery, it causes no pollution to the environment
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Douai is designed based on extensive research, testing and knowledge to create the optimal balance of waterproofing, tear strength and weight. Its polycrystalline silicon solar panel features high conversion
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With quality inspection from third-party companies, each phase of manufacturing is monitored so users can be confident that Douai is the most responsibly produced bedding in the market. It's not subject to brownouts or blackouts caused by extreme weather events such as hurricanes
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The manufacture of Douai is of professionalism. The process mainly includes the following stages: the procurement of metal materials, fabrication of the frame, machining and assembly of component parts, and commissioning. Featuring moisture and water resistance, it can be applied in roads, parks, gardens, and highways
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Through the whole process of strict quality inspection, we ensure product quality to meet industry standards. Adopting a recyclable Li-ion battery, it causes no pollution to the environment