专家解读视频
Deals with visual strength grading rules for timber in use in Europe. Applies to hardwood rules and softwood rules and covers visual strength grading of sawn timber of all species likely to be used for load bearing structural purposes.
NF EN 518:1995 - 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
SN EN 518:1995 - Identical
NEN EN 518:1995 - Identical
BS EN 518:1995 - Identical
DIN EN 518 (1996-07) - Identical
ONORM EN 518:1995 - Identical
I.S. EN 518:1995 - Identical
