NB/T 47023  法兰 C-G 2400-4.0/20δ0=10

3 CG 2400-4.020δ0=10

PL80(B)-16 RF C=19.2

bii 30000S1Sch80wnS

wn25(a)-16rf s=4

pl150(b)-16rf+b=.0/1

PL125-10 RF/00 RF S=5 sch40 H=291 rj

BL50-600RF S=20

bi 219 rf225RF8 d=185/103 rf b1/

3 RF 1300-1.0 δ0=4fRF02=5/u00S0 90ES/=2002059B=170.

bl25-250