GB/T 29465  法兰 M 500-0.25/20δ0=1

5 M 500-0.2520δ0=1

PL 25(B)-16 RF

WN 50(B)-16 T S=R

PL 200(B)-16 RF

a wn900-900rf25 R/4040sRS/07fFch40

BL 1/2"-150 RF

a bl1400-150rf/

PL 20(B)-16 RF

SO 5"-150 RF f=1.8

WN 600-16 FF S=16FF N=4RFS=0610350/60S000-1.60160RFR��.6S 65-13F.=6.