
Welded, brazed and soldered joints. Symbolic representation on drawings
出版:British Standards Institution

专家解读视频
Supersedes BS 499-2C(1980) (06/2002)
DIN EN 22553 (1997-03) - Identical
SN EN 22553:1994 - Identical
NBN EN 22553:1995 - Identical
ONORM EN 22553:1994 - Identical
I.S. EN 22553:1994 - Identical
NF EN 22553:1994 - Identical
ISO 2553:1992 - Equivalent
UNI EN 22553:1997 - Identical
UNE EN 22553:1995 - Identical
SS EN 22553 Ed. 1 (1994) - Identical