We are Keheng Industry Co.,Ltd,Our company is the largest manufacturer of fluorescent powder in China at present. ,Our fluorescent powder factory completely cooperates with Shanghai Fudan University, which mainly produce rare-earth Tricolor applying for compact type energy light and tubule fluorescence light having high-light effect, low-light decline, high-show color characters etc strongpoint. Our fluorescent powder products list is : Rare earth, blue fluorescent powder ;Rare earth, green fluorescent powder ;Rare earth, red fluorescent powder ;Rare earth, three component fluorescent mixed powder,Long-Afterglow phosphorus. we organized perfect quality control system with ISO 9001, an effective production procedure and good customer's service. If you are looking for a supplier of above-mentioned parts on a competitive price, good quality dully delivery and new design, please contact us directly for more information. Shall any further questions or inquiries, please don't hesitate to advice us, we will reply you immediately. Your reply in acknowledgement of this letter will be highly appreciated.More information please visit our web site.