GB/T 12459  异径三通 DN 200×200×150-Sch10TR D1=219 D=1FM

DN 200×200×150-Sch10 TR D1=219 D=1FM

LWN 40-150RF B=RR2(b)-1280

IF 300-300 RF/6 R16RFB)-0 F

WN25(B)-40 FM)-1650-16M603F-150)-M603F-15 ScH=56/

so250(b)-25g-2.5 أƒئ’�

wn25(a)-40 m

WN1200-16 FM0e5600 H=1506C�

WN 25(a)-40 RF15=52

3 RF 1400-1.