A.1.50g/cm3 B.1.80g/cm3 C.1.39g/cm3 D.1.70g/cm3
A.1.06~2.0g/cm3 B.1.06~2.3g/cm3 C.1.03~2.1g/cm3 D.1.05~2.2g/cm3
A.0.05~0.10g/cm3 B.0.07~0.15g/cm3 C.0.03~0.13g/cm3 D.0.01~0.19g/cm3