̩8ҳع˾Ӫ̩60Si2Mnɸ,̩50CrVAɸ,̩8ҳصȲƷ,˾չ,ʼհѳ̤ʵŵĿ,õļ۸񡢹ӲӮÿͻϲ,ӭ̩ͻѯѡ

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