je sais pas mais ne te fais pas livrer en express car tu passerais par la douane à coup sûr: tu paierais dans le meilleur des cas la TVA plus des frais de dossier de 15 ou 20€ (et en+ ça ne serait pas plus rapide)
moi j'ai déjà fait venir 2x des laser >1mW en France sans problèmes
I bought all those lasers in my signature from outside Belgium and they arrived without problems. The Sentorch was charged with extra 10euro tax/import/handling/whatever and I could take the laser right away. They must have know what was inside the shipping-envelop and they don't bother it.
In Sweden whe have "Strålsäkerhetsmyndigheten", wich mean "The Radiation Secure Authority". I emailed them about my 1 000 mW-laser, and it was legal to have inside. But not to shine out or wear it.
I don't know what it is called in Belgium, but search and email them!