HG/T 20592  法兰 SO 300(B)-6 FF

SO 300(B)-6 FF

wn250(b)-100 g s=24

3 FM 450-4.0

WN 80-900 RF Sch40

wn65-40 RF

WN 500-900 FM Sch80

BL 80-16 RF5

PL1150(B)-16 RF

WN1000(B)-16 RF S=16

WN 20-300 RF-100 LTmpmp00-013s=6R300000003.6-1D0LrffM S@bii2 RFf0 RF-40RFht.)-16 RR500RF16t.5 R4tR5 R