DBY is double-stage gearbox; DCY is three-stage gearbox Four assembly types according to output shaft: I, II, III ... , it upgrades step by step.Our products include:1. Helical Gearbox / Geared Motor2. Right Angle Shafts & Parallel Shafts Hardness Gearbox3. ... Reducer (stepless reducer) (0.12kw-7.5kw)6. E-motor7. Planetary Gearbox8. Door Opener9. Bearing and Coupling10. InvertersAbove products are widely ...