Hi Lawrence, I have a requirement to make 50 motorised trolleys. I am looking for Electric motor hubs that are thin, along with the corresponding chargers and batteries 36V, 20 Ah. The Wheel should be as thin as possible and maintenance free. 2. Please let me know if you know anyone who is able to support this requirement. 3. I know that this is too small a matter for your interest. Please help as a friend. Thanks / Kalai. 谁能提供上述的产品？尽快告诉我！
