GB/T 12459  异径三通 DN 900×900×10-Sch20TR40SB)-1F0 RF6 RFR

DN 900×900×10-Sch20 TR40SB)-1F0 RF6 RFR

BL450-25RF6 S=80ampampampampampampam

PL40(B)-10FFD=140C=16

BL500-150 FF L=18 C=14

WN 20(A)-63 M/-ampampam0-150Sch1

BL500-150 RF C=48

WN25(B)-16RF HG/Sch40s120)-2516 RF)-

BL500-16M6 RF .6/

PL100-16FF b=7 AA=