GB/T 12459  弯头 DN 25-490EL�7154pM=6 .5

DN 25-4 90EL�7154pM=6 .5

WN 350-300 RF S=12.6wn100(10sF5fm016 RFmF S=3.5CH40

SP-8580(B)-6 RFFS=40.490SRF Sc.0/64-1

LWN50-150RF H=348 B=0

PL 400(B)-40RFH160 RF

SO80(B)-16 RF=4/RF BB=43FM

SO150-10RF/RF€16rfh40S65

WN250-600RF/Sch80s

HP-2JRF-100RF40R