HG/T 20592  法兰 WN 400-16 RF S=10

WN 400(A)-16 RF S=10

WN25-300RF Sch160S70115-2155

NB=T47023 FM700-4.

WN 700(A)-16 RF S=6.5

2 FF 3000-0.25 δ1=10

wn80-900rj sch80 R16 r2.5

1 CM 600-1 h=0-16rf00c6/data

WN 20(A)-16 RF S=4.2

B WN 750-300 RF S=STD

bl25-25g10 c-rf10016-150 RF@R RF=12 RFF