NB/T 47022  法兰 RF 2200-1.6/20δ1=50.01

2 RF 2200-1.620δ1=50.01

pl350b)-10rf d=495 b

PL 50(B)-16 fF60-120 SCH4F=80

WN40(A)-16 M s6 Rfs==280 B=1701235 S=000-1.06 4

wn15(b)-40fm s δ=5

WN 50(B)-63 T S=10ampampquothg20615 wn35

PL300-6 FF50 rf sc6 RF00 Rf.0-1.

SP-2

20615 wn500-300rf6

SW 2