HG/T 20592  法兰 WN 250-63 M103 RF δ0=16J M@RF@0 LM RF20 RFAFF ScF&@l K wn d

wn250-63M103 RF δ0=16J M@RF@0 LM RF20 RFAFF ScF&@l K wn d

WN 200(B)-16 RF

WN 40(A)-16 RF S=4

wn250(A)-10 t54/pampampa

SO 20-150 Rf-1./

so50(b)-25 m=2RF.40ch4=

SO500 -10FMRF

DN1000-PN6 PL RF Ⅱ

SO500-10RF B-5 0B=87

WN 4"-150 RF Sch2200-1.01600