HG/T 20592  法兰 SO 450(B)-10 RF1500-=78 b=3пҝҪпҝҪ-112

SO 450(B)-10 RF1500-=78 b=3пҝҪпҝҪ-112

wn 50(b)-63 m s=4.570-165��6

wn25(a)-100rf s=40

WN 300(B)-16 RF C=36 H=86

SO 300(B)-16 RF0=1955RF)-1022

PL10-10 RF0=20 DRF3f sc2/RF1Gh40-F R=2.

so40-10rf s=3=10RF32 c-rf100=365

SO 32-150 RF4.0100-m.

PL2