专家解读视频
Specifies face-to-face (FTF) and centre-to-face (CTF) dimensions for PN designated metal valves used in flanged pipe systems.
SS EN 558-1 Ed. 1 (1995) - Identical
UNE EN 558-1:1996 - Identical
NS EN 558-1 Ed. 1 (1995) - Identical
NF EN 558-1:1996 - Identical
I.S. EN 558-1:1996 - Identical
UNI EN 558-1:2001 - Identical
DIN EN 558-1 (1995-12) - Identical
ONORM EN 558-1:1996 - Identical
BS EN 558-1:1996 - Identical
NEN EN 558-1:1995 - Identical
SN EN 558-1:1996 - Identical
