NB/T 47021  法兰 RF 900-1.0/720pp=12

1-rf 900-1.0720pp=12

BL 6"-150 RF

WN40-900 RJ Sch80 S=5.08

WN 500-150 RF S=B=484

WN 200-150 RF S=4F0ch9F-.5°FS10R@R4Sc2@�0.66100bRFB-1

WN 40-300 RF S=5

WN 20-16 RF Sch40S H1=6

SO 15-16G3 D=190FHGfsc

BL 10"-150 RF

LWN 15-300 RF B=1541.４