HG/T 20592  法兰 PL 300-16 RF b=1

PL 300-16 RF b=1

SO150-150RF

PL 300-6 RF b=1

WN 25(A)-16 RF S=3

PL150(B)-10 RF

WN60-40M5ch=20 H

WN 350-150 RF Sch40S

LWN 15-600 RF B=12

WN 25-150 RF S=4.6

BL 350-150 RF Sch40S1070400 DRF-6.4PL RS S=3-a- Sch40wF48pam &fh40sР�20δ0=8M450h40R80S5 RF�