Douai is manufactured under the inspection of the QC team. It is checked in all aspects to make sure it meets the standards for indoor decorating and refurbishing materials. Fast delivery can be guaranteed
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Douai incorporates different principles of fashion design. As only through the consistent use of all principles can a successful and eye-catching design be created. For now, Polyva has applied for 9 invention patents including 5 utility patents
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Douai has passed the fire protection test. The fire resistance testing is done to British, European, International standards, CE marking and third-party certification. Our R&D team is led and guided by a professor team from South China University of Technology
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Douai meets the regulations of the Administration of Power Supply. It has been tested for voltage fluctuation and current, and the test proofs that it runs safely and stably in the power supply system. Water soluble film can also be tested and verified by professional authority
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The design of Douai has been optimized. It mainly includes mechanical structure, spindles and drive system, control and inspection systems, etc. Our R&D team is led and guided by a professor team from South China University of Technology
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This product is highly durable and resistant to stains and fading. It will look new even after years of use. Our products range covers cold water soluble packaging PVA film series which include over 10 different types