NB/T 47065.1  支座 BⅡ 2891

BⅡ2891

wn50-300 rf s=4.5

PL 100(A)-16 RF

SO 10(B)-6 RF

WN 50-150 RF3178

WN 4"-150 RF Sch103

WN 300(B)-16 RF S=2680

WN80(B)-16 RF42188

WN125A-16RF S=L=146R/F

WN125-16rf40S1 CF S=3Fmch60050 S=14(A=6F6RF118tch80S�rFFmpa1217.5 RJj@Sam)0ScRF SCH4