On the morning of August 1, 2017, guan feng,vice President of school of mechanical engineering, changjiang university, and Dr. Liu shaowu, deputy director, came to our company for technical exchange and cooperation.Our technical director Dr. Shangguan and sales general manager Wei runxing and other company leaders attended the technical exchange meeting.Both sides discussed in depth the development and application of coiled tubing technology and discussed potential cooperation projects.Subsequently, accompanied by the leadership of our company, I visited the laboratory (testing capacity covers API 5ST) and the production workshop that the company has been recognized by the national level.After the visit, President Guan fully affirmed the testing ability and production management level of our company.