GB/T 12459  弯头 DN 125-Sch4090EL

DN 125-Sch40 90EL

WN 400-300 RF1FM6000F S=40

1 RF 400-1.0 δs=6

WN40-300 RF SC

47021 rf300-1.6 Ãh80RFCH=1510/70-1650=500160 FM

20615 PL100B-6 RF-1.0RF8.130=2Scf0634RFrfhFr4.0/10rfc0 FR1=e/c0

SO 50-150 RF

bl100a-16fm101

WN800-150 RF Sch40S

1 CFM 300