法兰 BL 100-10 FF aa= k= d= c= l= n=

bl100-10ff aa= k= d= c= l= n=

WN15-300 G Sch40 S=

WN 450-300RF SCH616fh10S20

WN300(B)-16 RF S=8.5

nb/t47022 fm600-2.5

WN 50-1500 RJ S=14500-0

WN500(B)-40FMFf5-RF S=3.5HG20615-

WN80-100 RF RF S=7.

NB/T47021 RF900-0.25-16 RF,S=6B)-25 FMn50-15

WN25-300