LZ-30, 45, 60 Fixed centrifugal tachometer produced by SHANGHAI AUTOMATION INSTRUMENT TACHOMETER AND INSTRUMENT MOTOR CO., LTD.
LZ-804, 806 Fixed centrifugal tachometer produced by SHANGHAI AUTOMATION INSTRUMENT TACHOMETER AND INSTRUMENT MOTOR CO., LTD.
LZ-807 Fixed centrifugal tachometer produced by SHANGHAI AUTOMATION INSTRUMENT TACHOMETER AND INSTRUMENT MOTOR CO., LTD.