HG/T 20592  法兰 PL 125-16 RF b=2/0 P.3-33.37SRF6F950-1.

PL125(A)-16 RF b=2/0 P.3-33.37SRF6F950-1.

wn50(b)-300 rf sch40/п╟п÷п╒п┴

3 G 1600-0.2520δ0=100 RE

WN50(B)-25 M f2=3 C=19500-2.5S=3

3 G 1800-0.620�

3 M 600-1.6 δ0=10 h=61

WN300(B)-16RF,S=c6/RRF A1175 C=20 K=1120 BF-1F0

5 RF 1750-0.2520δ