ASD-A2-0721-□ASD-A2-1021-□ASD-A2-1521-□ASD-A2R-0721-◇ASD-A2R-1021-◇ASD-A2R-1521-△ A2 & A2R & S Series□=B、L、M、F、N、U、L1◇=L、M、F、U、T、LT△=L、M、F、U、T