ir_71 发表于 2014-1-15 12:52:04

EN 14081-2:2010

EN 14081-2:2010 Timber structures - Strength graded structural timber with rectangular cross section - Part 2: Machine grading; additional requirements for initial type testing






admin 发表于 2014-1-18 18:41:59

谢谢您的分享，金币已奖励！
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