Zhejiang Sound Machinery Manufacture Co., Ltd. was founded in 1956, affiliated to the large provincial group Zhejiang Er light Group Co., Ltd., is one of the earliest production of plastic injection molding machine enterprises in China, for the national high-tech enterprises, won the second prize of national scientific and technological progress, the first prize of Zhejiang Provincial Science and Technology Progress, with provincial enterprise research institute, provincial enterprise technology center, national postdoctoral research workstation, academician expert workstation and other research and development platforms.