... it is fully automatic encaustic tile machine. WZ-2800 stone powder roof tile forming machine www.midbm.com.cn This ... belongs to utilization of waste materials, it uses local materials.stone powder:precipitated calcium carbonate powder, triple concentrated superphosphate powder, ... powder, quartz powder, mineral powder, shale, mine tailing, pearl stone, river sand, sea sand and so on.industrial waste:fly ...