GB/T 12459  弯头 DN 100-Ⅱ-490EL6rf sch80s=10&qu

DN 100-Ⅱ-4 90EL6rf sch80s=10&qu

pl350-25rj46RF S=6 CRRSh5Sf

WN 20(B)-16 RF S=4

HG=T20592-2009SO200(B)-16RF

WN00-16RF6h40 h=3480F6 RF S=

WN 40-300 RF Sch160S.0BR190 A-28090M

DN300/PN16/05B

wn20(b)-16rf s=3.5FRF

WN80(B)-25 T°rf5/10cer.min.

WN80-90