Tribological checks were completed utilizing a ball-on-disc T-11 tester. The balls had been manufactured from steel, whereas the discs were made from metal, aluminium oxide, zirconium oxide, polyamide and poly(methyl methacrylate). The outline of your gadget plus the approaches has become provided while in the literature (Szczerek and Tuszyński in https://pearlm593ovb5.ktwiki.com/user