On the morning of May 23, 2016, the general manager of Hebei Ruifeng Power Cylinder Co., Ltd. visited our company and started a series of tasks such as the automatic cylinder production line project. After the discussion of the project, we signed with our company on the same day. The engine cylinder automatic special machine production line project contract, the project was officially released on June 1st, 2016. Ruifeng Power Cylinder Co., Ltd. chose to cooperate with Hengli Machine Tool on the special machine production line project, fully explaining our company's leading position in the domestic plane industry. Status and technical level.