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pengyuewang 发表于 2017-2-20 17:39:18

BS-3923-1-1986-Methods for ultrasonic examination of welds.-Part 1

BS-3923-1-1986-Methods for ultrasonic examination of welds.
-Part 1 Methods for manual examination of fusion welds in ferritic steels

admin 发表于 2017-2-21 08:45:48

谢谢您的分享,金币已奖励!

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