https://jinanzhibi.en.made-in-china.com/product-group/zMIEHpJBmURm/dc-controller-catalog-1.html
dc controller - Jinan Zhibi Electronic Co., Ltd. - page 1.
China dc controller catalog of 48V 50A 800W 1000W Brushless DC Motor Speed Controller RS232 Can Control Remote Control BLDC Controller, RS232 Can Open RC...
dc controllerjinanelectronicltd