What do you need to tell the seller about the motor?
Description of motor type, power size, single phase or 3 phase power supply
3., indicating the grade of motor to be selected (selected for people to see, or indeed good quality)4. please recommend a competent manufacturer
2. the DC motor tells the excitation voltage and the AC motor tells the power frequency
1., uses, types (AC or DC), power, voltage, speed (AC available pole number), protection level, cooling mode, installation methods and accessories.