Hello to you all,
Thanks a lot for the links, I am checking them all. The Belgian website (also in English), apart from supplying chemicals, has a lot to offer. Not each supplier is able or allowed to deliver Silvernitate and Potassiumchloride. That is not that cost effective. But succes is for sure, weŽll succeed in the end.
If anyone has more addresses, please. IŽll contact some people in France and Hungary, perhaps we can create a European list of suppliers.