̫8ҳع˾Ӫ̫60Si2Mnɸ,̫50CrVAɸ,̫8ҳصȲƷ,˾չ,ʼհѳ̤ʵŵĿ,õļ۸񡢹ӲӮÿͻϲ,ӭ̫ͻѯѡ

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