׶8ҳع˾Ӫ۰׶60Si2Mnɸ,׶50CrVAɸ,׶8ҳصȲƷ,˾չ,ʼհѳ̤ʵŵĿ,õļ۸񡢹ӲӮÿͻϲ,ӭ׶ͻѯѡ

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׶8ҳع˾óһ塣ҪƷӪҵ:׶60Si2Mnɸ,׶50CrVAɸ,׶8ҳصȡƷ㷺Ӧڰ׶ҵ׶˾