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X'mas tree:
X'mas tree is a key equipment to control the pressure in wellhead and adjust the

flowrate of oil/gas well in oil/gas production operation 

* it can be designed into general or integral structure as required; 

* it can be completed with pneumatic/hydraulic safety valve; 

* it can be classified into two kinds of the single ¨C wing and the dual wing 

* as required , matched choke may be positive choke or adjustable choke

alternatively

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ʯÓÍÅä¼þ Äཬ±ÃÅä¼þ Petroleum Machinery  mud pump parts