GB/T 12459  弯头 DN 350-SCH40S90ES/ S-1. RF rf

DN350-SCH40S-90ES/ S-1. RF rf

WN1500-16RF6/52-1150FM��5 RF=18

PL 100(B)-16 RF

PL100(B)-16 M

PL 250(B)-10 RF/u000RFs10S=12�4.516���@Sc/Ca RFJF=

SO 200-150 RFfm c

WN100-16RF=S=4F860-10/r

BL50-10RF

47023M1200-16a RJ R1caRF Sch.1606 RFFch100