... Established in 1992, Nanjing Petro-chemical Co., Ltd. is a national high new tech enterprise of devoting to innovate, manufacture ... PetroChinas first-tier supplier of three additives for refinery and a member company of SINOPECs three additives cooperative network, and ... for refinery.,,,,Nanjing Petro-chemical Co., Ltd. wishes to create a new brighter future with the customers and all circles of ...