A.20~40 B.30~50 C.40~60 D.50~70
A.0.0005~0.0008 B.0.0008~0.001 C.0.0009~0.0012 D.0.0012~0.0014
A.0.005~0.008 B.0.008~0.01 C.0.009~0.012 D.0.012~0.014