[ WBT-1 直插型[1刀头] ]
[ WBT-1 直插型[2刀头] ]
[ WBT-1可插可充型[1电池+1刀头] ]
[ WBT-1可插可充型[1电池+2刀头] ]
[ WBT-1可插可充型[2电池+1刀头] ]
[ WBT-1可充可插型[2电池+2刀头] ]