HG/T 20592  法兰盖 BL 50-10 FF D= K=120 C=162 rf/data

BL50-10 FF D= K=120 C=162 rf/data

WN 4"-150 FF S=20

DN100/PN16/11B

2 CRF 3000-0.6 δ1=8

WN15(A)-63 FMpac0=36S=4(a)-16RF0/co

WN100-16RFC3f4.0/196-3500RF00

BL300-2.5FF009BL32-25RF5 H=2-25M0=16.5

3 FM400-1.60Brfch40S28580/u.FRh0RF S=40=bamp

wn25(b)