Henan Pinggao Electric Co., Ltd.

DALIAN INSULATOR GROUP T&D CO., LTD.

TeranHoo

Central Fortune Creation Technology Group Co., Ltd.

Guangdong Ctube Industry co., Ltd.

HENAN LIWEI INDUSTRIAL CO., LTD.

Jizhou Zhongyi Frp Co., Ltd.

SHANDONG TAIKAI DISCONNECTORS CO., LTD.

MCC-SFRE HEAVY INDUSTRY EQUIPMENT CO., LTD.

ZIBO TAA METAL TECHNOLOGY CO., LTD.

Hunan Valin Lianyuan Iron & Steel Co., Ltd.

GUANGZHOU Aputon ELECTRICAL CO., LTD.

Handan Zhengda Steel Pipe Co., Ltd.

ShanDong High Voltage Insulator CO., LTD.

Shengli Oilfield Dongrun Mechanical Engineering Co., Ltd.

Wuhu Jiahong New Material Co., Ltd.

Shijiazhuang Histe Electric Co., Ltd.

 Shaanxi Youfa Steel Pipe Co., Ltd.

Shandong Boyu Heavy Industry Technology Group

Dongguan Aobote Thermal Technology Co., Ltd.

Shandong Shengbao Heat Transfer Technology Co., Ltd.

TianJin RuiTong prestressed steel strands Co., LTD.

Kunshan Changrui Air Conditioning Purification TechnologyCo., Ltd.

Youli Holding Group Co., LTD.

Tianjin Jiugang Botai Steel Industry Co., Ltd.

Hebei Longrun Pipeline Group Co., Ltd.

Beijing Mingfeng Guangrun Trading Co., Ltd.

Tsingshan Steel Pipe Co., Ltd.

Gansu JISCO Group Hongxing Iron and Steel Co., Ltd.

Chinaust Plastics Co., Ltd.