HG/T 20592  法兰盖 BL 400(B)-16 FMampampampampamp

bl400(b)-16 fmampampampampamp

WN25(B)-16 M/4pl150

5 RF 2350-1.6 δ0=10

SO 32-150 RF141000-1.11510rf

WN 550-150 RF��25F S=(B)-16 FF4

5 FM 600-1.6 δ0=10

WN 100(B)-25 M S=5

WN 80(B)-16 FF S=10

WN20-300 FM Sch40 D=11780A����@MRF Sch40.6@40�