就是电动机型号，根据楼上提供的东西，电压2v 可以调解0.7-5v转速2200 电流0.015等等
Key attributes Other attributes Place of Origin Chongqing, China Brand Name YH Model Number RF-300CH-11440 , RF-300FA-12350 Packaging and delivery Packaging Details 1pcs/box Port shenzhen Supply Ability Supply Ability 100 Piece/Pieces per Quarter Lead timeKnow your supplier...