NB/T 47065.1  支座 BⅡ 580/0žâ´FFm0-92 h=

bii 580/0žâ´FFm0-92 h=

WN250(B)-1500 RF6a..15(B)-f0FMfF66R900-6.

SO 150-16 FFan-dr

WN25-600RF Sch160

LWN 2"-150 RF B=50.8

WN 80-2500 RJ

WN250-1500 RF Sch1009mbF0RF s=4F)

WN25-600RF B=24.7

2 RF 550-1.6 δ1=10

WN25-40g f2=39RRJ2Fpquotwn1.4�F