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标题: ASTM A469_A469M-07(R12) [打印本页]

作者: ygs67 时间: 2015-11-20 16:51:18 标题: ASTM A469_A469M-07(R12)

ASTM A469_A469M-07(R12) Standard Specification for Vacuum-Treated Steel Forgings for Generator Rotors

作者: 阿谢克那·李 时间: 2015-11-20 23:41:33

Standard Specification for Vacuum-Treated Steel Forgings for Generator Rotors

作者: admin 时间: 2015-11-21 10:24:50

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