Qingzhou Keda Mining Machine Co., Ltd. Mining Machinery (Cutter .
Qingzhou Keda Mining Machine Co., Ltd., Experts in Manufacturing and Exporting . A Verified CN Gold Supplier on portable gold mining plant patent . . Chain Bucket Sand/Gold Dredger .. China Portable Alluvial Gold Extraction Equipment,Alluvial Mine Machine,Small . to all over the world,had got the patent about gold washing equipment.