ͤ8ҳع˾Ӫͤ60Si2Mnɸ,ͤ50CrVAɸ,ͤ8ҳصȲƷ,˾չ,ʼհѳ̤ʵŵĿ,õļ۸񡢹ӲӮÿͻϲ,ӭͤͻѯѡ

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