Fluid control components cover a range of parts — throttle valve elements, flow-regulation structures — used to control fluid pressure or flow rate, all sharing the trait that internal flow-path geometry directly determines control accuracy. Even a small deviation in flow-path dimensions can shift the flow-regulation curve away from its design target, and in applications requiring precise ratio control or pressure regulation, this deviation can cause abnormal downstream equipment behavior. These parts are often designed in conjunction with fluid simulation data, which raises the bar for dimensional reproduction accuracy of internal flow paths during machining.

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