e, Shengli Oilfield Freet Petroleum Equipment Co.,Ltd. owned 11 branches & subsidiary companies, a reliable OCTG oilfield equipment manufacturer from China with annual capacity around 400,000 tons, account for 1/10 of all Chinese capacity. We are professional in not only API casing, ...
Telephone:86 - 532 - 80910133
Address:Shandong Rd Qingdao China Qingdao Shandong 266000 China