SlobloThese 2.5ml thick copper cookware have high heat conductivity which means they heat and cool rapidly with the heat source while still having really good distribution of heat. They're stainless steel lined, so you don't have to tin them either. Also, they're pretty much oven friendly.
NitronikonTraditional copper pots and pans have no stainless steel lining. Since its all copper, it reacts to food and acid. To make it usable, you "tin" it. Meaning they do a process to line the copper with tin. Typically, this is done on a regular basis. With these pans, no tinning is required.
As for oven friendly, many other types of pots and pans have maximum heat tolerances. This is all metal and therefore has a super high heat rating which can withstand most oven temps. Most calphalon and other non stick pans with coatings cannot go into the oven at high temp. It'll ruin the surface. Its the same reason why one cannot place the pan into the dishwasher if non stick.
As for oven friendly, many other types of pots and pans have maximum heat tolerances. This is all metal and therefore has a super high heat rating which can withstand most oven temps. Most calphalon and other non stick pans with coatings cannot go into the oven at high temp. It'll ruin the surface. Its the same reason why one cannot place the pan into the dishwasher if non stick.