HG/T 20592  法兰盖 BL 50-25 RF04B025600-4.4BB

BL50-25RF04B025600-4.4BB

SO 200(B)-6 RF)00-2.5/S.)-100M0-150 RFSRFB)

PL200(B)-40 T

BL 250-16 MCw0FMcos=2.516RF0 r

BWN800-300RF

SO80-10RF Cab/14 δ=20/86

pl50(b)-16rfb1=39188 R0SEsR

WN250(B)-25 t/ rB652F150c.5B)

LWN 2"-150 FF B=20. RF S=6RF scha/