GB/T 12459  偏心异径管 DN 40×15-Ⅱ-3RE

DN 40×15-Ⅱ-3 RE

SO 150(B)-16 RFCH6090EL

WN300B-16 M5htm hg/ sch4

DN 100-Sch80 90EL δ=4

DN 40×40×1050-Sch10S TR

3 C-FM 600-6.4RF Sc60S06R

SO450(A)-16 RF&ampampampw

BI 1200 H=300F10

LWN200-300RF SCH40/25-16RFRF/0RJ5A100-0.25 δ0=10R)

pl10(b)-