Jiangsu Yanxin Technology Co., Ltd. is located in Jiangyin City, Jiangsu Province (Xinqiao Industrial Park). The company covers an area of nearly 300000 square meters, with a total construction area of more than 200000 square meters, and nearly 2000 employees, including more than 400 engineering and technical personnel, 80 experts with senior professional titles, and a total asset of nearly 3 billion yuan. The company has more than 40000 square meters of heavy-duty workshops built in high standards, with a height of 35 meters and a maximum lifting capacity of 600 tons, which is in a leading position in the same industry.

Hebei Haitian pipe fittings Co., Ltd. is a professional pipe fittings manufacturer, located in dongzhaohe Industrial Zone, Mengcun Hui Autonomous County, Cangzhou City, Hebei Province, covering an area of 40000 square meters.The company was registered and established on July 12, 2005.

Wanda oil and cable company is owned by Wanda cable co., LTD， is a specialized company for research, development, manufacture and technical service of submersible pump cables, is the largest submersible cable and oil well special cable manufacturing company with leading technology and technology in China.