ͭ8ҳع˾Ӫͭ60Si2Mnɸ,ͭ50CrVAɸ,ͭ8ҳصȲƷ,˾չ,ʼհѳ̤ʵŵĿ,õļ۸񡢹ӲӮÿͻϲ,ӭͭͻѯѡ

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ͭ8ҳع˾óһ塣ҪƷӪҵ:ͭ60Si2Mnɸ,ͭ50CrVAɸ,ͭ8ҳصȡƷ㷺Ӧͭҵͭ깫˾