1: Square fuselage, higher strength, generally only suitable for large models.

2: The working efficiency of single stage is more than 97%, and that of double stage is more than 95%.

3: Using high strength alloy steel, the real gear is hardened, not only surface hardening, to ensure long-term service life and maintain the original precision

4: each process is processed and manufactured by ourselves, which has passed the test of living market and adopts full inspection.

5: Noise below 65dB