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Apparatus and method for an aluminum alloy cylinder head having a valve guide bore with spaced wear resistant integral surfaces
Apparatus and method for an aluminum alloy cylinder head having a valve guide bore with spaced wear resistant integral surfaces
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机译:用于具有气门导管的铝合金气缸盖的装置和方法,该气门导管具有间隔开的耐磨整体表面
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摘要
This application discloses an aluminum alloy cylinder head for an internal combustion engine having an integral valve stem guide bore therein with integral wear resistant end portions of the bore formed by an integrally bonded but different metal alloy for forming the wear resistant end portions.
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