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| Beijing YingGuangWanNian Technology Development Co. Ltd. (YGWN) is a high-tech company devoted to the R&D, production and marketing of photoluminescent products. YGWN has successfully developed a new generation of non-toxic, hazard-free and non-radioactive photoluminescent pigment. YGWN has also added a great variety of photoluminescent downstream products and now boasts of an annual capacity of 50 tons of pigment and 50,000 square meters of sinages ....
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