... .Simple operate chalk machine. 2.Could make colorful chalk 3.Two person operation 4.weara- resistant dustless Chalk making ... ,and then dry them in the sun or dryer.5.The packing should be completed by hand.6.Final ... .65 m3KY800-412,000-24,000 pcs/h400 kg2.5 m3KY800-624,000-32,000 pcs/h650 kg3 m3KY800- ... 835,000-48,000pcs/8h820 kg3.5 m3 dustless Chalk making machine could make all kinds ...