Scientific, research, navigation, surveying, photographic, film, audiovisual, optical, weighing, measuring, signalling, detecting, testing, inspecting, rescue and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, storing, regulating or controlling the distribution or use of electricity; electric contact apparatus; measuring apparatus; high-frequency apparatus; test fixtures for electric components and assemblies; electric contacts; test con...

Installation of renewable commercial and industrial roof coating systems; roof repair services