HG/T 20592  法兰 WN 250-100 RF S=4

WN 250-100 RF S=4

DPL400-10RF300 RF

1 CRF 1100-0.6 δs=8

5 M 500-4.05-20

SO10-6RF D=80

WN50-300 RF Sch40

WN 25-16 RJ390J00 RFJ6 RF5@FSFS1@ch4SS5 RJ2A

PL330-6RFF SchR6B)5F&@t.5 RJ RFpaF��RJ0PLRF@F

WN 3/4"-900 RJ Sch8

pl600(a)-10rf1001æ—&&;