三级片在线观看

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        BOMCO

          Baoji Oilfield Machinery Co., Ltd. (BOMCO) is a leading research & development manufacturing enterprise, affiliated to China National Petroleum Corporation (CNPC), for oil drilling and production equipments, land drilling rigs, F-series mud pumps, multi-purpose wirelines and drilling rig power control system.   BOMCO was founded in 1937 as Baoji Oilfield Machinery Plant, which was incorporated into petroleum industry in 1953 and reformed into a limited liability co... More>>>

        三级片在线观看