WWI professionally produce low noise, corrosion resistance, long life deep groove ball bearings specially used for air conditioner, washing machine, refrigerator, dryer, dish-washing machine, fan, blower, vacuum cleaner, exhaust fan, and etc household appliances machines.WWI bearings are more quiet when rotate. As a professional deep groove ball bearings manufacturer, we control our quality from material, process to the end product. by doing bearings turning, heat treatment, grinding and assembly as well as bearings grinding machine production by ourselves.