Polyshine Electronics Co., Ltd. is one of the largest potentiometer, encoder and switch manufacturers in China . It was established in 1982, and moved to Dongguan city after five years. At present, the Polyshine has already converted to foreign-invested company and located in Liuhuang No.5 industrial area, Chashan Town , Dongguan city, with 65,000 square meter (building area about 30,000 square meter) of factory, more than 56 producing lines and 1500 employees.            After decade of efforts, the Polyshine products have been sent to over 100 countries, including rotary potentiometers, slim potentiometers, trimmer potentiometers, super-thin potentiometers, encoders and mini-switches, w...