The najior products of kpt are as follows: Inorganic electroluminescent phosphors with light, thin, various color, various size, bendable and simple procedure in the production, in the recent year, this el phosphor procuct is widely applied in th e manufacture of flat displaying devices. For instance, to make lcd back lighting, large screen displaying, the mete display in the airplane and vessel, the board of advertising, emergency plate, car plate, etc. This el phosphor product can be used to make el glass screen, el enamel screen, el plastic screen, el line screen, etc. Our el phosphors have various emission colors: Mainly the blue, green, orange red white and the transitional colors of the above colors with strong brightness. The products can be used for a wide application conditions: High or low voltage and frequency. Upconversion phosphors and infrared laser sensor quantex presently, we have successfully developed laser analysis materials and sensor plates with the color of red, blue and green. This product is able to convert various invisible infrared laser to the visible emission, for instance, to analysis various laser radiation of the semiconductor laser devices, to track the laser light diodes, to rectify the light of yag laser, to recognize the forge by the laser in high tech. Products, etc. Our products have a simple constructure, high sensitivity, long life time, safety and widely applicable. This product will be able to survey, track, distinguish and rectify the laser radiation, and can be used in the filed of research, medical, fiber communication, industrial processing and military. Long afterglow phosphor we have two technologies and products for the long afterglow phosphor: A new aluminate phosphor and a traditional sulfate phosphor. The products are without poisonous, harmful and rdioactive during the manufacturing, storage, trasportation and application, and comply with the standard of environmental protection. The performance of our products is very colorful and bright(yellowish green, green, blue green ) with a long lifetime more than 8-15hs. The products can be used in the emergency boards, public guide boards, article goods, toys, household products, etc. We can also provide various el phosphors for displaying devices, the phosphors for fed, vfd pdp and 3 basec color compact lamp.