... motor, main speed reducer and other accessory parts.C. Bottom rollers were drove by main motor through main speed reducer, output ... quality of roll shaft and process artA. The material of rollers-- 45# steel.B. Manufacturer-ChinaC. Process art- cast steel ingot ... prevent—paint.VI. Supply range and packingBody partUp and bottom rollers devices, main motor device, balance device, rack of machine, base ...