HG/T 20615  法兰 PL 40-150 RF04110c05CF51=f)-1

PL40-150 RF04110c05CF51=f)-1

PL 350(B)-10 RF6m-19910fRF 57-3 B/

5WN 250-300 RF S-27 s=150 RF

A WN 650-150 RF S=5.54

BL1080(B)-25RFFRF6FRF845hh60uoMSch

WN65A-25M0 rf HC

WN300-300 RF B=298.5

BI 10002ml0t Rm3S B/6.5Ã1

PL600-16RF MX1. Sch40H1=1/bsp5

3 M