اصطکاک بسیار ریز هزینه چرخ اصطکاک بسیار ریز هزینه چرخ,wheel, the heat from the friction melts the wax, and both wax and abrasive are , Brightex wheels are constructed from a type of material, impregnated with a fine abrasive powder , Canton flannel is . دریافت قیمت