1)seat pan group,座盘组件2)valve components,阀座组件3)component receptacle,组件插座4)unitized substructure,组件底座5)pump mounting group,泵座组件6)seat cover group,座盖组件
用法和例句
Based on the sealing mechanism of the metallic sealing pair,the necessary conditions of sealing were analyzed and the large flow valve components were designed.
