GB/T 12459  异径三通 DN 1150×1150×450-Sch80STR

DN 450×450×1150-Sch80S TR

WN 1/2"-600 RF Sch40S

so20-600RFSC54-1210S16RFRF01300-1.6F

WN350-300RFS0

so450(a)-16 rf&eqid=80ebfc4e000393e3000

WN350B-40RF/6SF0 S=16=f0ch0 RF S=4.516

BI 1600-F=160 b3=240mpampamp5924f0

WN50-600RFF10rfFFFMch65

hg/t20