Specially designed for tubular processing. Equilateral triangle supports running to assure the roundness. Equilateral triangle supports rolling for improving roundness, concentricity and vertical degree. Driving by hydraulic unit: Featuring in easy operation and powerful pressure. The transmission gear with grinding shape: Featuring in noise-free, durable and precise transmission. Particularly applied to the tubular thread processing, such as oil connectors, bicycle, automobile and motor vehicle parts, radiating pipe etc.
