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We supply engine valves for various auto and motorcycle companies. If you canoffer us the drawings or specifications, we can supply the satisfied productsto you. Our business partner (Zhenjiang Winnet Air Valve Co. Ltd.) has passedthe ISO/TS16949 certification and AQA certification no. 5781.Material: 5Cr8Si2, 21-4N+5Cr8Si2, 40Cr, 40Cr9Si2Processing and operation:Precision forging, grinding, polishing in spiral, spray welding, quenching, nitrogen treating, titanium spraying
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