HG/T 20592  法兰 PL 25-6 FFr10 H=33F A

PL25-6 FFr10 H=33F A

WN 8"-300 RJ Sch40S

PL350-25 MF3/ h1=10 S=2.6)-25=210 RF=5

SO 32(A)-6 RF=501fh00 R54h511-16R

WN 8"-300 RF Sch80S

bl80b-16mor(b)-31=14=.249 WN 30

WN 2"-300 RF Sch80S

5 T 2200-1.620δ0=100=6bbhf

wn150-900 rf sch1

WN