NB/T 47022  法兰 T 2600-4.0/20δ1=10-01 S=10-10/u8=6S0

2 T 2600-4.020δ1=10-01 S=10-10/u8=6S0

SO100(B)-10 RFF0RF6M90132-M

WN 250-150 RF2.5 &=RF D=�1/-1HG/ Sch4048-11ampampampam

SO 15(B)-10 RF16 RF S= RFi8

PL300b-10RF460RR/43-1.0=6

SO 4"-150 RF560 S=6ampquothg206

WN 450(B)-100 RF s6/-sAA=

WN40(B)-1