Founded in 2005, Zhejiang Sun Stock Co., Ltd. was reconstructed from Shangyu Engine Machinery Co., Ltd., which was set up in 1958. Through many years' development, especially through the scheme and construction of "five year plan"- "7.5", "8.5" and first three years of "9.5", our annual output is 600,000 pieces of various types of crankshafts, 80,000 sets of small single-cylinder diesel engines, 10,000 sets of electric bikes and 10,000 tons of superior castings.

The advanced casting technology for nodular-cast-iron finishing within "8.5" period was praised and confirmed by the Ministry of Mechanical Industry in 1993. This technology is an important breakthrough of crankshaft production. Our product quality and production process have reached international level. In 1997, depending on the high level scientific and technical group, as well as advanced equipment and great research achievement, our company formed a reliable quality assurance system for product development. With t... [Details]