GB/T 12459  弯头 DN 50-Sch80180ESmpampampwd=

DN 50-Sch80 180ESmpampampwd=

lwn50-300rf b=4

WN350-25T.0.16RF1200- SO80(B)-16RF12f2ampa/u00c6/u00920-1f1SâPL50L�03rf9RF5 RJ00Fm@F.5 R7.5 RJ��

BL 250(B)-25 RF S=6

WN 25-63 RF S=5

WN 25(B)-63 RF S=5

LWN25-150 RF B=27

WN 250(B)-25 RF S=6

bl65-6 r