NB/T 47022  法兰 T 700-1.

NB/T47022 T700-1.

wn150b-25m40S-6jSch40S263 RF S=5 D=FF B6mn hg1 RF1000-0.6

WN 80(B)-10 RF B=78â�

wn80-150rf sc106 δ)-16

WN 200-300 RF sch801633

WN 40(B)-40 FM S=5.5

PL80(B)-10FFB1=7

PL350(B)-10 RF Sch40SG scR12 R00 RF400ES=39.25

WN 40-150rf1-25