HG/T 20592  法兰盖 BL 300(B)-25 FF2251.6ch10s0h440bl50sp

bl300(b)-25ff2251.6ch10s0h440bl50sp

WN50(B)-16 RF S=5.5 S31603II 8P

SO 80(B)-16 FF00-0.66S)/invoker/j

WN200-600FM B=198.5ch1650-15

abl1000-300rf/st0-19 Rjf�s b

lwn20-150 rf h=150RF/37F38

5M 600-2.5 δ0=16æ—&)-10

bl80(B)-16RFch80Fs=1280SF b6 R2

B