... and the so onMaterials for brushes: PA, PBT, PE, PP, PVC, steel wire, copper wire, arenga engleri, horsehair and various animal ... steel sheet, galvanized sheet, aluminum alloy, nylon sheet, pp board, pvc board, wood and so on.Brush hair materials: Copper wire ... . The length and thickness of brush hair are optional.Note: We can provide products of different specifications based on customers' drawings and ...