This document provides information about NGW Series Planetary Gear gearboxes manufactured by NER GROUP CO.,LIMITED. It describes the key specifications of the gearboxes including power ratings from 0.16KW to 1314KW, gear ratios from 2.8 to 4000, and efficiencies up to 97% for 1-stage units. Details are given on the technical specifications for 1-stage, 2-stage, and 3-stage models with different power and ratio ranges. Planetary gear units can be used in various industries such as metallurgy, mining, lifting, transportation, textiles, cement, and more. Inquiries are welcomed from the provided contact information.