DIN 18334 [Withdrawn] references following documents:

Document number Edition Title
DIN 68365 2008-12 Sawn timber for carpentry - Appearance grading - Softwood More 
DIN 68368 2006-02 Sawn hardwood for stairbuilding - Quality requirements More 
DIN 7998 1975-02 Threads and Thread Ends for Wood Screws More