HG/T 20592  法兰 WN 500(B)-10 RF S=12

wn500(B)-10RF S=12

WN100-150 RF Sch40 HG0 RF

HP-37ampa31=50-16RFÃL=ch40s0/650-2.51.0-

AWN 1000-300 RFH0500-RF-1.616 RF S

SO 200-150 RFRFc=1840FMc/

20631 pl150-16rfRF S=1h8582

so25-6rf50-150 R RF Sch80@F/25ch16 RFn/9chRF

PL200B-10RFs=42.-ampampamp

so