There was a little drilling to insert cables but any dust was cleaned up. The digital camera just isn't obtrusive and gives a great picture. What at first started as an investigation into utilizing recycled foods oil has remodeled into a number of indictments more than the creation of 1000s https://colormug.blogspot.hu/search/label/url-HHsGyDomCQKwyFArt3CDokfJX