Suzhou Jufeng Metal Cable Co., Ltd Xiangtan Juneng Insulation Materials Co., Ltd Jufeng Electrical Insulation System Testing Co.,Ltd Suzhou Jufeng Electrical Insulation System Research Institute Co., Ltd Suzhou Jufeng High Performance Materials Co., Ltd Europe Jufeng Electrical Insulation System Co., Ltd Wujiang Branch Suzhou Jufeng New Materials Co.,Ltd Suzhou Jufeng New Materials Technology Co.,Ltd