Shanghai YIKAI ELECTRONICS Co., Ltd, which is a SINO-American Joint venture and located in Xinzhuang Industrial Park of Minhang District of Shanghai, was established in 2004. The company introduces the technologies and the electronic components from American\South Korea and Japan and assemble & debug the device in home, by this way, the company could reduce one third of total cost. In order to seize the market, the company make the quality as the principle of competition, and stipulate that the product's maintenance rate within 2 years must be lower than 3%. In order to achieve this goal, the company creatively adopt the quality management mode of American Manufacturers, and specify the following manufacturers to provide components: Chip (I. E., CPU processor) and IC (integrate chip) come from Microchip and Motorola, the U. S. Military electronics manufacturer; Transistors and Diodes are provided by Toshiba Corporation; Resistance provided by the Samsung Corporation (South Korean ); Capacitors come from TDK and RUBBY company of Japan; SCR is provided by Japan SanRex Company. After years of application, our customer have proven that this quality management model could guarantee a <3% maintenance rate within 2 years after sale. Because of the low failure rate, good stability, favorable price, fast service, our product has been recognized and supported by enterprises in home and abroad. At the same time, the companies have developed rapidly and continuously develop new products to meet customer needs. In order to meet the needs of our customers and further development, we have established several offices in many developed cities.