... Motor 1)Our main products: Motor, auto dc motor,electric motor, Gear Motor, DC Motor, Brush DC motor, Spur Gear motor, Micro Motor, Vibration ... motor etc 2)Products size range: diameter:6-52mm 3)DC Voltage ... Cu-Ag Alloys Commutator--Copper-graphite Brushes--Be-Cu Leaf-brush Commutating System--SECD Round/Flat Shape Housing--SECD End ...