Founded in 1958, 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 the first three years of "9.5", our annual output is 600,000 pieces of various types of crankshafts, 150,000 sets of small single-cylinder diesel engines, 10,000 sets of electric bikes and 10,000 tons of superior castings. The advanced casting ...