... a clean world. Our company has developed new twisted-in wire brushes ,bottle brushes, which have been tested by Tsingtao Beer ... plate.Materials for brushes: PA, PBT, PE, PP, PVC, steel wire, copper wire, arenga engleri, horsehair and various animal hair and vegetable wool ... , PP and PVC the maximum diameter is1.2mm; for copper and steel wire the maximum diameter is 0.5mm; and for vegetable ...