... 800-2 Automatic beating and water supply,Product line, 1 operator, 120000-150000 pieces per day.Packing ... 800-6 Automatic beating and water supply, Product line, 2 operators, 380000-400000 pieces per day.Packing ... 8CBMHNYL 800-8 Automatic beating and water supply, product line, 3 operators, 580000-600000 pieces per day.Packing ... 80 mmTotal weight: 850 kg, 3 CBM High-qualified School Chalk Making Machine