ChengGong peteroli mu mujyi wa dongying Daqing peteroli ya peteroli Guizhou Bata peterolochemical tank zone Petrochina Donging Petrochemical Co. ltd Shanxi Yanchang China Coal Yulin Ingufu na Chimil Co. ltd Sidaliya Kusanya no Kumurika Tiajin Cnooc Tuyimize Urubuga rwa Petrochemical Xinjiag Kunlun TINEZE Isosiyete isanzwe ya gaze Zhongke (guangdong) gutunganya & chimique co. ltd