valve retainer 气门护圈 ; 阀门扣环 ; 阀片限位板
check valve retainer 单向阀保持架
lock valve spring retainer 气阀弹簧锁头
UPPER VALVE SPRING RETAINER 上气门弹簧座
valve guide retainer 阀导承护圈
valve spring retainer key 阀簧底座销
valve retainer lock 气门弹簧托盘锁扣
valve spring retainer lock 阀弹簧锁夹
valve spring retainer clamp 气门弹簧座锁片
Remove valve spring and retainer.
拆卸阀弹簧和扣件。
Valve Guide, Valve Seat, Valve Lock, Valve Spring Retainer, Casting Products.
气门导管，气门座圈，气门锁片，气门弹簧座，铸件系列。
The paper explains the working environment and wear mechanism of valve retainer. The key factors for superior valve retainer quality are the proper material selection and reasonable part design.
阐述了气门座圈的工作环境和磨损机理，高品质气门座圈的关键在于恰当的材料选择和零件的合理设计。
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