... , also called Sanding Mesh, Sanding Screen Sheet,with grain materials of silicon carbide or aluminum oxide, specially used for burnishing plasterboard and ... customer's requirement Product Specifications:· Grain materials: Silicon carbide or Aluminum oxide· Grit size: P40, P60, P80, P100, P120, P150, P180 ... ", 15", 16", 17", 18", 19", 20", 21", 22", 23", 24"· Sheet Size: 3-5/16" x 11", 3-2/3" x ...