... the wall,plastic,rubber,waterproof material 350-400mesh:gusset plate,chemical,pipe 400-600mesh:toothpaste and soap 800mesh:rubber,pvc,plastic,electric ... made through process of calcining.chemical reaction,reselection.dehydration,drying and depolymerization.It is adopted the technics of particular multi-selection ... .4400MESH940.3980.30.4325MESH940.4980.30.4 E07109, Limestone Powder, building material