PetroChina Dagang Oilfield Company Tianjin 300280 China;
PetroChina Dagang Oilfield Company Tianjin 300280 China;
PetroChina Dagang Oilfield Company Tianjin 300280 China;
PetroChina Dagang Oilfield Company Tianjin 300280 China;
PetroChina Dagang Oilfield Company Tianjin 300280 China;
PetroChina Dagang Oilfield Company Tianjin 300280 China;
PetroChina Dagang Oilfield Company Tianjin 300280 China;
PetroChina Dagang Oilfield Company Tianjin 300280 China;
PetroChina Dagang Oilfield Company Tianjin 300280 China;
PetroChina Dagang Oilfield Company Tianjin 300280 China;
PetroChina Dagang Oilfield Company Tianjin 300280 China;