Products of QT-7 series are in a fineness of 600 mesh - 1800 mesh, with blue light whiteness of 75 degrees - 93 degrees. This series of products are small in cut diameter and fully categorized in terms of fineness and whiteness, hence possible to offer customers with products that best suit their needs. This series of products are mainly used in fields of PVC foam board, PP/PE/PVC pipe materials, plastic master batch, non-woven master batch, artificial leather, and paint, etc. Product Model:QT-70,QT-72,QT-75,QT-77, QT-78,etc.