Aug 16th to Aug 17th, Oilbayer kopa ninu awọn ile ise bošewa ti "Epo Well Cement Performance Awọn ibeere" ṣeto nipasẹ awọn National Epo ati Gas Standardization Committee liluho Engineering Sub-Technical Committee ni Yichun City, Heilongjiang Province, ati ki o kopa ninu awọn paṣipaarọ ti o ni ibatan cementing ọna ẹrọ.
Akoko ifiweranṣẹ: Oṣu Kẹsan-10-2018