... ecology environmetal protection material.Specifications:Material: 95% australian woolColor: natural wool color Thickness: 10-25mmSize:diameter, 3-inch (75 mm), 4 ... 5,6,7,8-inch wool wool textile workball (of wool weaving up the hair line), 95% wool content.Can also be ... are wools characteristic.By overlapping makes the felt with wool own lamella after the fulling.Used in mechanism,electrochemical ...