GB/T 12459  异径三通 DN 300×300×8-Sch140TR.45

DN 300×300×8-Sch140 TR.45

WN80-300FM S=8

DN300-PN16 WN RF I S=12

SO 2 1/2"-150 RFFM5 R7.5

PL20(B)-6 FFmpampamp000-150

WN 600-900 RJ S=4/

hg/t20592 bl600-10rfFa

DN100-PN16 WN RF I S=3.6

WN 150(B)-25 M S=3F@F=3

wn200-600tR-F13050-Bcrf14n 20��