... our main products are: Gear Motor, Three phase Motor, Speed Control Motor, Brake Motor, DampingMotor, Torque Motor, DC Gear Motor and so on. They spreadly ... ,start to produce DC gear motor;2006 start to produce small series AC gear motor;2007 start to produce planetary gearbox ... of national standardasynchronous speed adjustable motor>in 2008;ZD is the first draft-man ...