1.Hot Sale Powder Press Machine/Charcoal Briquetting 1.Low cost, high efficiency 2. ... Machine Product introduceThis series ball press can press the coal powder into ball. Ball press is widely used in many ranges ... coal powder, such as aluminum powder, active carbon, aluminum oxide, bauxite, causticity sodium, charcoal, clay, braize, coal, cryolite, chemical fertilizer, plastic, lime stone, pigment ...