... gear motor with high quality/(PVC, PP, PE, PA, PC, ABS .etc)Series general helical gear box We ,Lucheng screw ... , fairly low noise is reached.7.High EfficiencyThe efficiency of gear unit can reach 95%, The efficiency of worm ... gear unit can reach 89%.8.Large Radio Loading ... hesitate to contact me. Plastic reducer/gear motor with high quality/(PVC, PP, PE, PA, PC, ABS .etc ...