Views: 135 Author: Site Editor Publish Time: 2022-12-02 Origin: Site
Valves are made of body, bonnet, disc, stem ,seat ,actuator and so on. These pats are purchased in statusof sem-finished with strict acquisition policy, then use equipments ,such as machine center, numericalcontrol lathe, milling machines for finishing machining, at last ,assembled into finished product.
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