1. Self-developed, national patent approved 2. Stable performance, two-stage planetary mechnism 3. Non-rust, big torque, 290Kg XHG01 ... .98676.62180201000693290XHG01.51000.0828.32159.16160001000565290XHG01.51000.0928.32159.16160001000565290 Two-Stage Planetary Gearbox