great quality,low price,compact structure,effective

1.2 Types of installation and output base type, big or small flange type installation, and output through solid shaft.
1.3 Input types couple-type motor, input through shaft and input through coupling flange.
1.4 Speed reducing ratio two-stage 5-24.8, three-stage 27.2-264, and combination of RR can reach 18125.
1.5 Average efficiency two-stage 96%, three- stage 94%, and combination of RR 85%.