NB/T 47021  法兰 FF 1000-1.6/9 S°w)-0(b)

1 FF 1000-1.69 S°w)-0(b)

WN200-600RF SCH16/

WN50B-25RF SCR

WN500B-25 FM S=12-163 rf100/425RF

wn50(b-25 rf s=5.6

WN 4"-150 RJ Sch40S

BL150-150 RF L=3/4&ampampampampampamp;a

PL125(a)-16RFl0 RF Sch140025(a

WN 10"-150 RF S=115uRF6/57801-17.