GB/T 12459  等径三通 DN 500-Sch40STS

DN 500-Sch40S TS

20592 WN1000-63RF

SO 500(b)-10 RF

SO10(B)-16 RF

BI 15005b Fžâmpam

PL5(B)-16 RFF-rf@40@S5 RJrvlet/F sF080 schFS5 RJ2A=F6m386@RFRFf

wn250(b)-40fms=/-0F=3 rfSch140 T6 rF16RF s=41=89

SO 20-300RF

DN100-Sch40 TSCampnb

BL125-16T4uF S=50&