流量控制阀主要有机座、阀体、密封垫、衬套、阀芯、轴承、透气层、充气槽及传动装置组成。
The flow control valve is mainly made up of housing, body, sealing shim, liner bushing, valve cartridge, bearing, breather layer, aerator tank and transmission device etc.
阀体和阀帽连接部位经过精密机加工。密封垫材料请参阅第3页，详细内容参阅第13页。
Body and bonnet joint accurately machined. Gasket materials on page 3, details on page 13.
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