Glad to know that you are focus on automation control and energy saving field.
Kewo is a high end  manufacturer of  AC Drive, Frequency Inverter, VSD, soft starter, solar pump system, solar pumping drive…in China.
Products range: 
Soft starter and soft starter cabinet, no need external by pass contactor.
Solar pump inverter drive, and system with MPPT function.-----DC to AC.
High end frequency inverter, variable speed drive…. Speed and torque control.
1. AD300 1PH 0.75kw to 2.2kw AC drive/3PH 0.75kw to 5.5kw AC drive
2. AD1000 high performance vector control inverter with V/F, close loop vector, open loop vector control mode. ( The software developed base on Emerson EV5000)
3. AD800S vector control inverter for PMSM & kinds of induction motor.
4. AD850Z servo drive for PMSM of injection molding machine.(Good energy saving)
5. AD850T servo drive for spindle control with position, fixed length to cut… function. (No1. Technology in China)
AD series inverters developed based on Emersion EV5000 software platform with 20 years R&D experience engineers, who come from Emersion and Inova.
 
Samples testing and factory visiting is welcome.