... as calcium carbonate, talcum, kaolin, zirconium silicate, wollastonite, graphite, silica powder, tourmaline, mica, barite, plaster, betonite, diamond, quartz, diatomite, feldspar, calamite ... research field for varied metallic powders, such as aluminum, iron, magnesium, molybdenum, copper, zinc, other rare metal and varied alloy, etc ...