casabcdef1 发表于 2007-11-24 18:14:12

ASTM A 247-67 Standard Test Method for Evaluating the Microstructure of Graphite

ASTM A 247-67 Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings1
ASTM A 247-67 铁铸件中石墨显微结构评定试验方法附评级图
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