Weifang Zhongyun Group is a hi-tech private enterprise with more than 40 years experiences of manufacturing high quality plastic pipe equipment and wind generator, and is the leading manufacturer for machinery and electricity in China. It has three companies named Weifang Zhongyun Machinery Co., Ltd; Weifang Swisselectric Co., Ltd. and Weifang Zhongyun Scientific & Research Co., Ltd. There are 680 employees and three production bases. ……