NB/T 47065.1  支座 A 7242

2 A7242

2 RF 1600-0.6 δ1=10

3 B8873

3 B8670

3 B7525

WN 80-300 RF Sch80

3 B4374

BII 31211

BL3 1/2"-1500RF6 RF5@FSFS1@ch4SS5 RJ2A�)-40RF5 RJ�6data@f2s1�FFRF50 RF Sch806)FC@RF��235-R@000F@00-40 FFR00Fj@5@RF

WN60-40M5ch6WN0sRF00AF5@°0p