The tribological characteristics of a below 1 mm micro ball bearing comprising steel disc and cages coated with thin copper and silver films were investigated. Electroplating and laser cutting were used to manufacture used elements. Friction was measured using a linear stage and an adapted version of a friction-loop method. https://kwfubfqq0jgvmy.timeblog.net/70682648/sovereign-cds-premiums-reaction-to-macroeconomic-news-an-empirical-investigation