HG/T 20592  法兰 SO 25-10 RF.-2 d=1220FMRF1=13H1=S=3.

SO25-10RF.-2 d=1220FMRF1=13H1=S=3.

B WN 900-600 RF

B WN750-150 RF f1=6S-16(B)-216 rf.

WN 80(A)-150 RF S=5

WN 40(B)-160 RFF1 SH=3536B1=713

5 FF 1650-6.420δ4

A200025tgF�RSch40D=1092.2 N=827

PL 80(B)-10 FF1.0/70-150

JWN 100×150-300 RF S0

BL150-600RJ