To strengthen the work of production safety and effectively prevent safety risks, the Emergency Management Bureau of Longkou City, in accordance with the requirements of the "Notice on Issuing the Imp...
The electric flanged ventilation butterfly valve has a compact structure, is lightweight, easy to install, has low flow resistance, large flow capacity, avoids the influence of high-temperature expans...
1. Overview of Spherical Check ValvesSpherical check valves are widely used in devices such as petroleum, chemical, and power heating boilers. They are mainly used to prevent the reverse flow of media...
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