GB/T 29465  法兰 C-T 1200-0.25/20δ0=10

5 CT 1200-0.2520δ0=10

WN 15(B)-160 FM S=3

WN 40-63 rfRFFrf b=5S=9

wn150-16ffÃEL023

WN 250(B)-16 RF S=10

WN150(A)-40RFB=6/h42RF RFF=1

JWN 250×300(B)-16 RF S=8.8

SW 65-150 RFM4 T1266f sc59 W-300 r252

20615 BL 400-150 RFsch=40f b1=2mRF Schδ1

wn100(b