I want to know where there are more ball mills now.

I don't know how to tell you in detail. Generally speaking, there are ball mills in Henan and Jiangsu, but in Henan, the paint is mainly washed with recycled ball mills and then sold at a new price. But in Jiangsu, no matter big or small companies, there are many professional ball mills. For example, Jiangsu Pengfei Group, Peng Fei Group, Ruian Te Group, Hong Fei Company, and so on, are all specialized in producing mining machinery. You can check it online yourself. As for what you need to pay attention to when buying a ball mill, in fact, it is nothing more than whether the ball mill can meet your production needs, its service life, the adaptive life of motors and reducers, and so on.