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› ASTM A27/A27M-20 Steel Castings, Carbon, for General Application
wzg8762
发表于 2020-12-1 08:57:50
ASTM A27/A27M-20 Steel Castings, Carbon, for General Application
ASTM A27/A27M-20 Standard Specification for Steel Castings, Carbon, for General Application
一般用途碳素钢铸件标准规范
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发表于 2020-12-1 09:48:28
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ASTM A27/A27M-20 Steel Castings, Carbon, for General Application