GB/T 12459  弯头 DN 600-Ⅱ-845E3D

DN 600-Ⅱ-8 45E3D

DN350-PN16 WN RF Ⅱ B=

WN 4"-300 RF800 R

5 CT 900-4.020δ0=8

A 150041.6/80-& RF Sch40S50 RF Sch40

WN 4"-900 RF S=B=92.04

3 FM 2300-1.r/u0h s=7m-2RFFF0/4000RJ SbS/ R/u00e0

DN80/PN16/11B Sch10S S=3.05

BI 1600K

BL600-150 RF