lybro 发表于 2009-7-23 08:51:55

ASTM A 148-2003 结构用高强度钢铸件

ASTM A 148-2003 Standard Specification for Steel Castings, High Strength, for Structural Purposes
页: [1]
查看完整版本: ASTM A 148-2003 结构用高强度钢铸件