成品油

refined oil

surname Cheng

to succeed / to finish / to complete / to accomplish / to become / to turn into / to be all right / OK! / one tenth

finished goods / a finished product

(bound form) article; commodity; product; goods / (bound form) grade; rank / kind; type; variety / character; disposition; nature; temperament / to taste sth; to sample / to criticize; to comment; to judge; to size up / fret (on a guitar or lute)

oil / fat / grease / petroleum / to apply tung oil, paint or varnish / oily / greasy / glib / cunning

Lanzhou-Zhengzhou-Changsha oil pipeline