Sinopec is the abbreviation of China Petrochemical Company.
Series of books of YY branch of XX company. Branches and branches are generally translated into branches, separated by commas, but the Qilu branch you mentioned has its own proper name and does not need branches. In general, the departments of universities put the departments in front and the universities in the back, separated by commas, such as the physics department of Qilu Normal University and Qilu Normal University.