Many Colorado and Vermont areas have similar snowfall scores, but most Colorado areas get large positive adjustments for the snow preservation factors while all Eastern areas take a big hit for low altitude and rain incidence.
Tramontina is a Brazilian company that manufactures cookware, cutlery and home appliances. It was founded in 1911 and today it exports products to more than 120 countries.
Just like rust develops on iron, patina develops on copper when the copper sulphate on the surface interacts with oxygen in the environment. Importantly, unlike rust which corrodes iron, patina actually protects and preserves the copper underneath.