GB/T 12459  弯头 DN 100-Sch10S90E3D

DN 100-Sch10S 90E3D

PL 250-10 RF rf135-240S D=

WN40-16RF S5-25/b)-10rf025f Sch16.05 F6604770

BL 450-150 RFrF/B)-25 FMH=2

BI 600-S0F012

bl450(B)-25 m5A00-

WN100-150t Sch40h402rfch404550B-10

WN50-63G6 RF161/

WN400(b)-10 RF10 b1=17�/y.50.

wn50-100m s