Dustless chalk making machine 1,no dust chalks 2,all colors 3,good quality Dustless chalk making machineDiscriptionThe machine is supplied water automatically,mixing material by ... assemblyline.The work efficiency is more higher than the traditional machine.And it can save 30% material.The rate of ... size mould 660*500*350mm,six pcs 2.5M3mixing-machine 1310*700*1100mm,one pcmould shelves 1150*630*450mm ...