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主要生产和经销活塞环及气门座圈。
Major production and distribution piston rings and valve seat.
youdao
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气门导管,气门座圈,气门锁片,气门弹簧座,铸件系列。
Valve Guide, Valve Seat, Valve Lock, Valve Spring Retainer, Casting Products.
youdao
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气门导管,气门座圈,气门锁片,气门弹簧座,铸件系列。
Valve Guide, Valve Seat, Valve Lock, Valve Spring Retainer, Casting Products.
youdao