GB/T 12459  弯头 DN 200-890ES5 RJ

DN 200-8 90ES5 RJ

pL50B-16RF

LWN25-300 RF Sch40

WN 80(B)-25 RF

WN100-40RFSch801400-10=129020592

WN 2 1/2"-150 RF S=5

WN 50(B)-160 M1. RF S=12

SO50-150 RF

pl300-16rfaa7FMrjsch40F0b80s

47023 FM 700-1.6/46-110/ SCH400 RF RF Sch10Sf s1cBh ScF@RF Sch