Sebei gas field vigorously carry out mass innovation and innovation activities made technical (valve technology) of the results. August 13, Qinghai Oilfield Company Sebei gas field independent research and development of new "multi-stage series" sewage valve field application test was successful. The gas field staff through the change of the traditional structure of the sewage valve, the valve up and down the sewage switch mode, and in which the principle of multi-stage throttling and shearing in order to minimize the sand on all levels of sealing organization erosion purposes.
Hydraulic power steering system work by using a hydraulic system to multiply force applied to the steering wheel inputs to the vehicle'steered(usually front) road wheels.the hydraulic pressure typically comes from a gerotor or rotary vane pump driven by the vehicle's engine
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