The hand wheel is divided into bakelite handwheel, plastic handwheel and chrome-plated polished handwheel according to the material. The bakelite hand wheel is further divided into an inner corrugated hand wheel, a back corrugated hand wheel, a round rim hand wheel, a double strip hand wheel, a double handle hand wheel, a small corrugated hand wheel, a milling machine hand wheel, a small hand wheel, and a dial hand wheel. The chrome handwheel is divided into a flat hand wheel and a corrugated hand wheel.
