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![]() Beijing Hualong Yayang technical development Co. Ltd., and attaching to which, Beijing Hongye Yayang Photoluminescent Material Factory, are high-tech corporations mainly engaged in long afterglow Photoluminescent material and the like, keeping a long-term cooperation with the New Material Co., Ltd. under the Non-ferrous Metal Institute with advanced technology and devices. We, with several domestic and foreign patent rights, are the only one corporation who was granted the patent rights titled with high performance Photoluminescent material in China and USA. The synthetic product, long afterglow Photoluminescent material is processed by special art, characterized not only in long decay time, high brilliance, multi-color, but also in excellent thermotolerance, high lightproof, weather resistance, chemical-resistance. It passed many international standard tests such as radioactivity test, safe test of toy, food analysis in Japan, radioactivity test in China Measure Academy of Sciences and so on. It has been proved that the long afterglow Photoluminescent material is non-poisonous, harmless, non-radioactivity and safe to life. A series of products, such as Luminescent plastic, Luminescent film, etc. based on deep research in Photoluminescent powder, have been successfully developed. With more wide application of Photoluminescent material to buildings, signs, adornments, crafts, etc., our products far sell in America, Europe, Japan and other Asia countries and subsequently enjoy a good reputation from all of their customers. At present, a kind of new synthetic product, "Qinglong night-bright |
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