... with the customer. Coal , Ball Press Machine, OEM Manufacturer in China,20t/h1,Ball press machine: Ball press is a widely ... aluminum oxide, bauxite, causticity sodium, charcoal, clay ,braize ,coal, cryolite, chemical fertilizer, plastic, lime stone, pigment, urea, etc. 2,Ball Forming ... Machines working Principle This series of type pressure machine will pass the power on to the ...