Frictio coefficiens Tester applicat ad membranas plasticas, laminatas membranas, extrusionem membranae, foils, schedae, Flexilis, charta, charta, lignum, caudex, coronas, windshield wiper, TRADUCTOR cingulum, leporem, metallum, carbo, cathetum, pellis artificiosa etc. static coefficientis et dynamicus coefficientis