ygs67 发表于 2015-12-23 16:17:47

ASTM E280-10

ASTM E280-10 Standard Reference Radiographs for Heavy-Walled (41⁄2 to 12-in. (114 to 305-mm)) Steel Castings

admin 发表于 2015-12-23 17:20:48

谢谢您的分享，金币已奖励!
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