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Abstract: The accurate control of hydraulic support movement in coal mining remains a significant technical challenge due to the limitations of the existing electrohydraulic directional valves, which ...
RBUA – bi-directional direct-acting relief valve ... designer and manufacturer of high-performance screw-in hydraulic cartridge valves and manifolds that control force, speed, and motion as ...
No NP TE71LN , Unregistered NSW,VIN 1VRU1614861003105,Sol.... Used 2013 Vermeer D36X50DRII Horizontal Directional Drill CP 01 2013,Built 01 2013,Vermeer,D36X50DRII,Horizontal Directional Drill,4 ...
The revolution is the product of advances in oil and natural gas production technology—notably, a new combination of horizontal drilling and hydraulic fracturing. These technological advances ...
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