sanmaosjy 发表于 2017-11-8 16:52:35

DIN EN 1611-1:2002(E) Appearance grading of softwood - Part 1:

DIN EN 1611-1:2002(E) Appearance grading of softwood - Part 1: European spruces, firs, pines, Douglas fir and larches

admin 发表于 2017-11-9 13:51:15

谢谢您的分享,金币已奖励!
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