The hand wheel is divided into two categories according to the national standard.
According to the raw materials, it can be divided into: natural rubber handwheel, and plastic handwheel, bakelite handwheel hand wheel, according to the style, there are mainly small hand wheel, corrugated hand wheel, small corrugated hand wheel, back corrugated hand wheel, round rim hand wheel, Internal corrugated handwheel, double-handle handwheel, cast iron plated handwheel, flat handwheel, double-strand handwheel, dial handwheel, etc.