介绍了一种适用于球阀、蝶阀和旋塞阀的阀杆旋转角度启闭的撑拢式阀门密封结构。
Its suitable for ball valves, butterfly valves and plug valves and it has gained an invention patent patent No: ZL00111674.
介绍了一种适用于球阀、蝶阀和旋塞阀的阀杆旋转角度启闭的撑拢式阀门密封结构。
Its suitable for ball valves, butterfly valves and plug valves and it has gained an invention patent patent No: ZL00111674.
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