China Centrifugal Conentrator manufacturer Ball Mill Shangdong Hengchuan Ore Machinery Co Ltd established in 2002 is a leading ore machinery manufacturer in China Company covers area of 20000 square meters have 6 engineers 20 technicians and more than a stsff of 100 people Our main products Placer Gold Mining Machine Magnetic Separators Sand Mining and Washing Machine Mining Dredgers Sand Barges Particular Vessels