... in metallurgy, mine, transportation, power, cement, building, chemical, textile and light industry. Features: 1. Compared with the former reducers, the ... dimensions of hard teethface reducers are decreased by 56%, and the weight are decreased by 40%, but service life are ... made if high-strength alloy steel and treated with carburization, quencher, gear grinding. The precision of gear is grade 6. 4. The ...