GB/T 12459  弯头 DN 150-Sch40S45ELSch49 RF(pqu

DN150-Sch40S 45ELSch49 RF(pqu

SOP FF 5K L 350A

WN 25-150 RF RF-=05 rR6-25 RF3.9

WN150-300rf6 δs=800 LG Sch40S=3.5199 S=10 H

SP-5/BB

WN 400(B)-10 fm8 r

pl 40(B)-40 RFc0s(bs=51=3 L=23 C=24º¹F9wn

wn80(b)-16rfs=6/F

PL125(B)-40 RFT2060.6-1.

WN 600