Douai is designed and manufactured using high-quality material and the latest techniques in compliance with industry standards. For now, Polyva has applied for 9 invention patents including 5 utility patents
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The design of Douai is never out of date. Located in Nanhai High-tech Zone, our factory covers 3300 square meters with over 60 employees
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The design and material selection processes of Douai are strictly controlled. The adopted materials are all harmless which do no harm to human body
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Douai leads in design and technology. The adopted materials are all harmless which do no harm to human body
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The manufacturing process of Douai is safe and reliable. Our R&D team is led and guided by a professor team from South China University of Technology
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A rigorous quality control process ensures zero defects and consistent quality. Fast delivery can be guaranteed