These series of Rotary bushing are suitable to fit into API drill pipe spider ,drill collar spider ,casing spider and roller bushing ,with two structures of solid boby and split body .TWO types are available ;pin driven and aquare driven .They are designed and manufactured ...

Dongying Lake Petroleum Technology co.,ltd    [Mechanical Parts & Fabrication Services]   [Casting]   [2018-05-25 14:23:07 ]

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