
Structural timber. Grading. Requirements for visual strength grading standards
出版:British Standards Institution

专家解读视频
1995 [15/10/1995]
© British Standards Institution 2013
NF EN 518:1995 - Identical
I.S. EN 518:1995 - Identical
NBN EN 518:1995 - Identical
ONORM EN 518:1995 - Identical
SN EN 518:1995 - Identical
NEN EN 518:1995 - Identical
DIN EN 518 (1996-07) - Identical
UNI EN 518:1997 - Identical
NS EN 518 Ed. 1 (1995) - Identical
UNE EN 518:1996 - Identical
SS EN 518 Ed. 1 (1995) - Identical