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keywords： Optical brightener，Fluorescent brighteners，Optical brightener manufacturers
Description: Shandong Raytop Chemical Co.,Ltd established in 2006.We are optical brightener manfuacturers and factory. Now days we has three production bases,with total area of 120,000 square meters, 6 workshops and more than 260 employees. We are the most professional optical brightener suppliers and manufacturers in China. We have a optical brightener factory,special advantage products optical brightener for plastic, discrete optical brightens, optical brightener in textures, optical brightener in paper and masterbatch and so on.