GENEVA, June 29 -- CHINA PETROLEUM & CHEMICAL CORPORATION (No. 22 Chaoyangmen North StreetChaoyang District, Beijing 100728), 中国石油化工股份有限公司 (中国北京市朝阳区朝阳门北大街22号), SINOPEC SHENGLI OILFIELD COMPANY (No.125 Jinan Road, Dongying DistrictDongying, Shandong 257001), 中国石油化工股份有限公司胜利油田分公司 (中国山东省东营市东营区济南路125号) filed a patent applicati...
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