HG/T 20592  法兰盖 BL 400-6 RFSO50-RF/F n-

BL400-6RFSO50-RF/F n-

BL200(B)- 100M

DN25-Class600 WN M S=90ApHG/16 M HGR6RF-3mm01A04Sch805 RJSc

DN20/PN16/01A

3 RF 500-1.0 δ0=10

BL350-1500 RJ

BL80-150 RF C=

SO 40(A)-25 ML(b)-10RFRF=182 K=1HG/FSO3=F801pa RF Sc

WN 40-300 RF/f

WN 100(B)-40 RFrampamp