A.-5~-3 B.3~0 C.0~3 D.3~5
A.4.5-5.4L/S B.5.5-6.4L/S C.6.5-7.4L/S D.7.5-8.5L/S
A.99.98% B.99.99% C.99.998% D.99.9998%