A.1.0~1.5m/h B.1.5~2.0m/h C.0.5~1.0m/h D.3~5m/h
A.2~3m B.3~4m C.4~5m D.5~6m
A.50~100r/min B.70~120r/min C.90~140r/min D.110~160r/min