Product Description Detailed Photos Product Description Product Features 1, The gear is made of high-strength low-carbon alloy steel by carburizing and quenching. The hardness ofthe tooth surface is up to HRC58-62. The gears are groun d grinding technology with high precision andgood contact.2, High transmission efficiency: CHINAMFG is greater than 96.5%, double level is greater … Continue reading China Best Sales CZPT Extruder Gear Speed Reducer Zsyj560 for Plastic Edge Band Machine sequential gearbox