NB/T 47065.1  支座 A 2791

47065.4 A2791

WN 50-150 RF8501

BⅡ615

3 B983

WN 8"-300 RF4.0/0

wn25- 40rf/UKEw-2.-25rf0.501FR

PL300(B)-16 RF b=0/0h40/05RF Sl5006F0150Fkers

JWN 25×50(B)-25 G S=5

WN100B-16 RF S=6.6 K=321-F(S)RFRF5

WN 600-40 MHRFS0RF595-2 RJ Sch80R.RFS=205-4=25