If the wear of the piston rod is due to the large amount of wear of the cylinder and the piston, or the center line of the cylinder does not coincide with the center line of the base, the method of repairing the piston rod can be used to eliminate the above reasons and solve the leakage of the filler. 

On June 29, Zhang Gaoli, member of the Standing Committee of the Political Bureau of the CPC Central Committee and Vice Premier of the State Council, and the Russian Prime Minister Dmitry Medvedev jointly attended the opening ceremony of the China-Russia East-East Gas Pipeline in China through a video link and delivered a speech, marking the Sino-Russian East Line. The natural gas pipeline was started on the whole line.

First, the installation of the overall piston air compressor

At present, Sino-Russian relations are in the best period of history, and the comprehensive strategic cooperative partnership between the two countries has reached a new stage.