HG/T 20592  法兰 WN 250(B)-6 RF R)-4-1.

WN250(B)-6RF R)-4-1.

4 A5)-SF-1ch4c

47065.3 B4

WN 100-300 RJ Sch80SF b

47023 FM 1600-1.0/80-155 δ0=12h=1

2 RF 600-1.138 H=FF9-10 rf s=8rf0=1H=200019H16X

SO300-150RF=7hg

WN700-600 RF Sch30B=thg

BL 50-600 RF1=380-

DN 150-Sch10S 90E3D=6 M S=8:w8RFm5-0.