A.200~220MPaB.200~230MPaC.220~240MPaD.220~250MPa
A.21.5mmB.22mmC.22.5mmD.23mm
A.0.2-0.5ml/100mlB.0.2-0.6ml/100mlC.0.3-0.5ml/100mlD.0.3-0.6ml/100ml