The company passed API certification in December 2019

The company passed the American Petroleum Institute API certification on October 12, 2019.

On October 12, 2019, senior auditors the American Petroleum Institute came to our company for a detailed rigorous audit. With the full cooperation of all departments of the company the joint efforts of all employees, our company successfully passed the API certification of the American Petroleum Institute. It further proves the high quality level of the company's products lays a solid foundation for the company's continuous development, continuous improvement promotion.