NB/T 47022  法兰 RF 2400-0.6 δ1=14S=f

2 RF 2400-0.6 δ1=14S=f

DN800-PN10 WN RF ⅡRF S=30

WN600-150 RF Sch40 S

NB/T47023 WN500-16RF/ampamp80R2f 60814FchrjS=f

WN 1350 -150 RF s=1

47023 FM1100-1.6/80-

WN 2"-150 RF Sch40S

BL200-40 RF

API6A 10000B4h=mFF00-300

WN 10(B)-10 TpampampaT SchP