专家解读视频
States tolerances on dimensions and form for aluminium and aluminium alloy extruded square bars with widths across flats from 10 mm up to 220 mm.
I.S. EN 755-4:1996 - Identical
ONORM EN 755-4:1995 - Identical
DIN EN 755-4 (1995-09) - Identical
BS EN 755-4:1996 - Identical
NEN EN 755-4:1995 - Identical
SN EN 755-4:1995 - Identical
NF EN 755-4:1995 - Identical
UNI EN 755-4:1997 - Identical
NS EN 755-4 Ed. 1 (1995) - Identical
UNE EN 755-4:1995 - Identical
SS EN 755-4 Ed. 1 (1995) - Identical
