NB/T 47021  法兰 FF 1300-0.6/20δs=1688 n=24 L=42 C=690

1 FF 1300-0.620δs=1688 n=24 L=42 C=690

WN600-25 RF

SO80(b)-10rfs=10

WN 100(B)-25 RF S=4mpampampampam

TPB-4-10

BL500-25Mf GMF0S0 RF)-1.66.0RSCH160 R

PL450-10 RJ000691h6=26 c=30 h=93ch.4

bl350-16 fm sch600=1440 B=18 H

wn80-10 rf s=52.5=2.520

SW 2"