HG/T 20623A  法兰 WN 1250-900 RF S=12

A WN 1250-900 RF S=12

so15-150m000-1.0rj-1.3

WN 50-300 RF S=5.65.5RFh40sh/1 rff s/T2/(B)-100.6å½ã‚â RF b=3RF S=7.1rf)900B=29

bl32b-6rf/60R-mpampampampampampa

3 CRF 550-0.2520δ0=2025RFRFF

SO 40-150 RFh160Sr000

SO 200-150 RF040505F01110sR10416 R