HG/T 20592  法兰盖 BL 65-16 RF d=1 b=4 s)-16

bl65-16RF d=1 b=4 s)-16

PL 80-150 RF b=380/40-130RFFH420S Sch4300 Rj1=16b=

WN 800(B)-25 RF S=0-4.0/

WN 150-600 RFF S=19.5=12°pl

WN 150-600RF Sch80=3.6

WN250(B)-25 RFS=1.5amRF040 H=25

WN100-300RFG0 δ0=6F0 RF(HG/T 20592)71610rf--1.0rf1500-0.6

wn100-4