A.2.5~3kg/cm2 B.>2.5~3kg/cm2 C.<0.15kg/cm2 D.>0.15kg/cm2
A.<2.5~3kg/cm2 B.>2.5~3kg/cm2 C.<0.15kg/cm2 D.>0.15kg/cm2
A.195g/h B.150g/h C.105g/h D.70g/h