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。
A spring on the valve stem tends to hold the valve on its seat (closed).
气门杆上的弹簧使气门保持在气门座上(关闭状态)。
To clean; remove bottom plug, seat spring, strainer and seat disc.
因此要清洗，拆卸底部塞、阀座弹簧、过滤器和阀座阀瓣。
Seat Flip: spring back, also can be slow return spring plus damper body.
座板翻转：弹簧回复，也可做弹簧加阻尼慢回复机构。
Seat Flip: spring back, also can be slow return spring plus damper body.
座板翻转：弹簧回复，也可做弹簧加阻尼慢回复机构。
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