HG/T 20592  法兰 WN 250-16 FM S/ht-115F RF RF S

WN250-16FM S/ht-115F RF RF S

BI 400 r sch80ch160f-10mF00AF ScF1.-150

BL125-600T NPT1/2"150a)-F

PL40(B)-16RF b=30 H=

PL300(b)-16RF b=3/'/

PL50-6 RF=610=C

WN 80-300 Ttf556RF/data/srcu40RF0c1500F S

PL40-25 RFELRF-30 B1HGfS S=6=50 RASCHr50(F-

PL3