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Organizer: China National Building Waterproof Association Our association was approved by China National Building Materials Industry Bureau in 1984. It has been registered by Civil Administration Ministry, directed and supervised by China National Economy an

International Partner: National Roofing Contractors Association (NRCA) National Roofing Contractors Association (NRCA) is one of the construction industry's most respected trade associations and the voice of roofing professionals and leading authority in the roofing

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