Nanjing New World Changjiang Instruments Co., Ltd a joint venture established in November 2000,funded by the Electric Optics Co., Ltd and the former Nanjing Cine Equipment Manufactory. Basing on the advanced electric optics technology of Nanjing Cine Equipment Manufactory, this promising company has been devoting itself to exploiting and manufacturing high-quality products in the field of AV (Audio-Visual) teaching equipment, OA (Office-Automation) equipment. Nanjing New World Changjiang Instruments Co.,Ltd possesses various kinds of advanced processing equipment, precise testing apparatuses and high efficiency assembly line. With scientific and scrupulous management, all kinds of products have been manufactured such as Overhead Projectors, Video Presents, screen, and stationery etc. rank the top on the home market. Recently TTB series Overhead Projectors have once again passed the state-level-quality test and entered China Dragon-Tiger Roll in Quality . Moreover, they also have for many times awarded as the Super-Quality Product and Customer-Satisfied Products. Recent years ESP.VP-series video presenter is experiencing a fast development. So far ,An integrated distribution network has been set up all over the country through a large number of Teaching Equipment Purchasing Stations subordinated to different levels of Teaching Administrative Department in each country, city, and province., and AV teaching products sales agent as well .We believe, with the scientific and modern management methods of logistic system, our product can be conveniently distributed to the whole domestic marked cheaply and efficiently. On the international market, Nanjing New World Changjiang Instruments Co., Ltd has successfully cooperated with many European, American companies through OEM project and many models of overhead projectors have obtained CE, S approval. CHANGJIANG Overhead projector have been exported to more than 30 regions and countries, won bids repea