NB/T 47065.1  支座 BⅠ 439S=8.7409am

bi 439S=8.7409am

WN 450(B)-16 RF S=10

wn 50-900 RF

WN 80-150 RF Sch10S

WN 25(B)-16 RF S=4

WN50(B)-160 RF

WN 3"-300 RF Sch40S

WN80(B)-16 RF12231

BII 33425

DN1000-PN25 WN RF Ⅱ S=22.0M.60�J Sch400a@f2s1�0 RF Sch80H=224RJ C=3=16RF RJ2s/@470 RF.