HG/T 20592  法兰 SO 20(B)-25 RF6RFF Sc

so 20(b)-25rf6RFF Sc

SO 40-300 T120e0RF S=12 H

wn80(b)-150RF A=108 rj150rf

SO150B)-16 RF.rf5 K=73rf0R

SO 10"-150 RF30rf50=12&8 h1=7jmph60M531/6mpa21633-

PL25(B)-10RF H

SO150-150 RF55F

WN 50-900 RJRFch40 Sch40S1

WN40-300 RF,s=3.918 RFR

WN 80-40