Shaanxi Hongxing Electronic Components Co., Ltd. (also known as No. 4310 Factory), the largest manufacturer specializing in precision potentiometer in China with more than 30 years history, now possesses two introduced production lines, sixteen self-made production lines and several producing and testing equipments introduced from England, Japan and America. With strong R&D and advanced production abilities, the company continues to strengthen technical communication and cooperation with foreign countries. As a result, it now leads the trend of potentiometer in China and has formed full series products including Cermet Trimming Potentiometer, Wirewound Potentiometer, High Voltage Focus Potentiometer and Cermet Resistor which are widely applied in fields of Telecommunication, Computers and Peripherals, Household Electric Appliances, Instruments, Air and Space. Popular in Europe, America, South East Asia, South Asia and South America, HONGSHENG and TRIMMER brands potentiometers stand for high quality at home and abroad.The company always lays stress on quality, management and technical progress. It first passed the qualification of ISO9002 in 1996, then military production line qualification of GJB546A in January 2000, American UL in September 2002, ISO9001:2000 and American RAB in March 2003 and CQC in April 2003.Now, we are developing Chip Potentiometer, Motor Potentiometer and other Special Potentiometer. Contact us now, we will satisfy you all with best service and products.