... Block Making MachineBrick Raw MaterialsConcrete,Cement,Flyash,Sandstone,Gravel,Sand, Construction waste, Industrial solid waste and so onMethodHydraulic PressureMolding cycle18~22 SecondsRated Pressure20MpaBrock ... molds.2) Raw materials such as gravel, river sand, tailings, coal gangue, fly fish, slag, and volcanic ash can are extensively used to ...