˫в8ҳع˾Ӫ˫60Si2Mnɸ,˫50CrVAɸ,˫в8ҳصȲƷ,˾չ,ʼհѳ̤ʵŵĿ,õļ۸񡢹ӲӮÿͻϲ,ӭ˫пͻѯѡ

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˫в8ҳع˾óһ塣ҪƷӪҵ:˫60Si2Mnɸ,˫50CrVAɸ,˫в8ҳصȡƷ㷺Ӧ˫ҵ˫й˾