HG/T 20592  法兰 SO 100-40 RFRFSch40S ذ0RFf

SO100A-40RFRFSch40S ذ0RFf

SO 250-150 RF Sch40/data

5 RF 300-6.4 δ0=8

WN1 1/2"-150RF SCH40S

PL 500(B)-16 RF

SO 350-10 RF

5 FM 300-6.4 δ0=8

NB/T47023 FM400-2.5 δ=34

SO 250-150 RF Sch80/data

BL 250-150 RF/data24.1WN450(B)-25RF S=12s125-100R05