DIN EN 14081-2:2018
木結構 矩形截面的強度分級結構木材 第2部分:機械分級;型式試驗的附加要求;德文版 EN 14081-2:2018
Timber structures - Strength graded structural timber with rectangular cross section - Part 2: Machine grading; additional requirements for type testing; German version EN 14081-2:2018