等径三通 DN 200-12.7TS C=38

DN 200-12.7 TS C=38

BL350(B)-150RFF 16MnF2.5 FF 16Mn

wn500-300 rfâª=2

SO100A-25RFR

SP-6-20-12 δ/

47022 c-FM800-1FB)-1/

NB/T47021 t1000-0.6+c

20592 wn32-25 rf s6=8R RF AA=89 S=40.630-h80 a=168.=56 S=1@SO10

wn125(b)-10 m2RF0/0861=3 L=236/42-1

PL40(