HG/T 20592  法兰 WN 25-40 M

WN25-40 M

1 RF 1800-0.25 δs=10

WN 65(B)-16 RF S=5

1 RF 450-0.6 δs=8

WN 400(B)-16 RF

WN 65(B)-16 RF S=4

PL65(b)-16RF

DN 80-Ⅱ-4 90ES

WN80(A)-25 RF S=8

WN 65-300 RF S t 40PL RF Ⅱf1FRFFM20870S-158m3Рҹ41d0R S=≥4.5g/fRF1uoFF4.c)-18340�RF0-25 RF