trh000 发表于 2015-12-3 20:09:18

ASTM E446-15 Standard Reference Radiographs for Steel Castings Up to 2 in.



阿谢克那·李 发表于 2015-12-6 13:56:53

ASTM E446-15 Standard Reference Radiographs for Steel Castings Up to 2 in.(50.8mm) in Thickness

admin 发表于 2015-12-7 18:09:10

谢谢您的分享，金币已奖励！
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