GB/T 12459  异径三通 DN 800×800×600-Sch10TR

DN 800×800×600-Sch10 TR

PL100(B)-16 RF RFRFF RF=4 rf6 RS

WN350-600RF SCH40SM.5pampampamp

PL80(B)-16RFRF50RF ScF116M=3

A WN 1200-150 RF S=14.3LT Sch400 so4F

SO200A-150 RF�6 S=12rfSM

BL 20-150 RF(00(b)-16rf5 L=2RF(B)

pl150-6ff/(B)-10RF s=

B WN850-