In the afternoon of 9th April 2012, the chairman of the company, Zhang Xiqing, and the chairman of labor union Geng Yancheng were accompanied by the related departments, and visited the factory of Gas Pressure Station of Dongying. They expressed their salute and sincere thanks to the front-line staffs. The factory is bear the task of supply gas to industrial and domestic in the Dongying area. For more than ten years, the annual maintain work has been carried out by Pumping Unit Factory, there has been a good cooperation relationship for many years. The annual maintain work was scheduled in early April. However an urgent notice from central factory was received which says that the Pumping Unit should send staffs for the maintain work by 30th March. For ten days, the staffs who have involved show their excellent skills and attentive service which have won praise of users’. By now, the maintain work has almost come to the end.