... belongs to utilization of waste materials, it uses local materials.stone powder:precipitated calcium carbonate powder, triple concentrated superphosphate powder, talcum ... powder, quartz powder, mineral powder, shale, mine tailing, pearl stone, river sand, sea sand and so on.industrial waste:fly ... protection.2.Changing waste into valuable, the cost is quite cheap, it is 1/3 of cement tile,and 1/5 ...