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valve key
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。
youdao
The present invention relates to a new method for die making and a valve lock clamp making.
本发明涉及一种气门锁夹及模具制造新方法。
Lock the exhaust valve in its open position.
把排气阀固定在它开启的位置。
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