NEN EN 975-1:2009现行
Sawn Timber - Appearance Grading Of Hardwoods - Part 1: Oak And Beech
出版：Nederlands Normalisatie Instituut
专家解读视频
Defines the rules determining the quality of appearance graded sawn timber. It also explains various grades of temperate hardwood rough sawn timber and regularized timber for which it lays down denominations and definitions.
ONORM EN 975-1:2000 - Identical
SN EN 975-1:1999 - Identical
BS EN 975-1:2009 - Identical
I.S. EN 975-1:2009 - Identical
NF EN 975-1:2009 - Identical
SS EN 975-1 Ed. 3 (2009) - Identical
NBN EN 975-1:2009 - Identical
UNI EN 975-1:2009 - Identical
NS EN 975-1:2009 - Identical
DIN EN 975-1 (2009-07) - Identical
SN EN 975-1:2009 - Identical
UNE EN 975-1:2010 - Identical
ONORM EN 975-1:2009 - Identical
ONORM EN 975-1:2010 - Identical
DIN EN 975-1 (2011-08) - Identical
UNE EN 975-1:1996 - Identical
NS EN 975-1:1995 - Identical
UNI EN 975-1:1999 - Identical
NBN EN 975-1:1999 - Identical
