GB/T 12459  弯头 DN 300-Sch80S90ES11061750

DN 300-Sch80S 90ES11061750

WN 12"-150 RF Sch80S d=1904

AWN1000-300 RF1.0n80

47021 FM300-1.083/

WN 80-150 RF S=3.056@.50fm R

BI 900RFFR RJF S ScF- C

wn25-1500FMclass14=6550 Sch405F7“Т“

PL 15(B)-16 RF B=2

WN500-600 RF B=508

WN 2"-2500 R