HG/T 20592  法兰 PL 200(B)-6 G=350FFrfH40 rf0 S=10

HG/T20592 PL200(B)-6G=350FFrfH40 rf0 S=10

1 CFM 500-0.6 δs=6_36 rfδ0=≥12

WN 350(B)-16 RF S=10RF25RFRFF S=6=500-1.60

WN 900-40 RFRFSc H=3010.31RFf16=RF B=41 H=)-160F

WN 50-300 RF SCH80S=3mm-25rbspH66-04Fr4 S= B=2s

BL 200-6 RF55B�âSrf1000-1

BL50