GB/T 12459  等径三通 DN 1200-Sch80STS

DN 1200-Sch80S TS

wn350(a)-100 rfRR0&

nb/t47021 fm 450-1.6

WN65b-40FM SRetM

BL600-63 M0(B)-/РF680S00

wn125a-25fm60/ea/S/6 RFFF6 RF sFH40 H=15735fm S3h40

bl450-300 rfF0-4.0/Tam5rfF08Ror50(a0jmxinF=S

BL100-10FF C/-0./0(MFRF/9G25(B)-16G300(B)-25FM

BL 1