regulation of V-ball valve V形调节球阀
Electric v-shaped regulating ball valve 电动V形调节球阀
Pneumatic V-Type Adjusting Ball Valve 气动V型调节球阀
Electronic V type ball valve 电子式V型球阀
V-ball valve repair without a long, long life, to provide you with the real state of efficiency of a process control valve.
型球阀长期不需修理，使用寿命长，为您提供了真正的高效率进行控制工艺状况的一种阀门。
V-ball valve is the first valve design of the regulator, after a very long time usage, the manufacture technology is already matured.
形球阀作为最早设计出的调节性阀门，经过了很长时间的使用，制造的技术已经成熟。
V-ball valve is the first valve design of the regulator, after a very long time usage, the manufacture technology is already matured.
V形球阀作为最早设计出的调节性阀门，经过了很长时间的使用，制造的技术已经成熟。
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