ygs67 发表于 2015-11-20 16:51:18

ASTM A469_A469M-07(R12)

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

阿谢克那·李 发表于 2015-11-20 23:41:33

Standard Specification for Vacuum-Treated Steel Forgings for Generator Rotors

admin 发表于 2015-11-21 10:24:50

谢谢您的分享,金币已奖励!
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