Hi everyone,
in Italy suppliers such as egl, voltarc, brillite are not present. The market is supported by tecnolux and glostertube which are good suppliers. Scrolling on the web I found a distributor of neonpro tubes and accessories. Electronic transformers are very well known. Please, I ask you if you have experience with neonpro tubes and electrodes and what you think about it.
Thank you guys

Oh that's interesting! I am only familiar with NeonPro making transformers and had no idea they also made tubing and electrodes, so I'm afraid that I can't comment on that. The 3 major neon tube suppliers here in the US used to send out sample packs of tubing for neon shops to try and make color displays with. I'm not sure they even do that anymore. Maybe you could contact NeonPro or one of their distributors and ask them to send you some tubing samples so you could see how they behave in the fires.