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Zhejiang John long new materials co., LTD. Is a professional engaged in polymer materials of software research and development, design, production and sales of modern enterprise. Co***nies focus on product, technology, continuous innovation, with advanced technology and strong research and development ability, to provide customers with high quality materials and software. Specializing in the production of canopy cover material, awning room, membrane structure material, airtight material, bags, protective ma...
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