HG/T 20592  法兰盖 BL 80(B)-16 RF b=3

bl80(b)-16 rf b=3

WN 400(B)-16 RF S=10.31

SO 150(A)-16 FM=5la/r

WN 400(A)-10 RF Sch S=80 R

2 FM 1100-1.623 M 300-1.662.5FFRFF-1

3 FM300-6.4-93Sb=5S

wn15-150 rfs=40

PL300(B)-10RF615-2009(B)-10RF10

bi2500-fs30592b6000650f sch80s/12bf

wn20-150 rfsch0)-1