NB/T 47023  法兰 RF 3000-2.5i/40-65

47023 RF3000-2.5i/40-65

BL25-300TS

5 FF 650-1.020δ0=

WN250-6 RF80116)-16 R/h40S/

WN 25 (B)-25 RF S=6RF0b-16RFpamJ20δ0=18R/40S406

pl100(a)-2.5ffF0F)-10-20B=

IF50-6 RFb=50-63 RFS=2.5F602

SO200(B)-150 RF S=45-ScR

3 FM 1000-6.4201=46L=

n12so100-150rff-