GB/T 12459  弯头 DN 700-Sch80S90ES5L50-150RF /t

DN 700-Sch80S 90ES5L50-150RF /t

WN500(B)-10 RF S=9

WN600-600RJ3 RR.5 B=Fd

21520PL300(B)-10RF

47023 fm 450-2.5/forum.f R

WN 8"-300 RF Sch40S

bL40(B)-25RFhB0h44rfF.5 R

WN350(a)-40 RF17S ScS=2F004.25/-105@ARF

WN800-16 RF

WN40-150RF52/B=40=2pampampa