Setting tools for use in wellbores

Security windows, doors, shutters and screens; frames, surrounds, glazing elements, shutters, screens and reinforcing sections all for windows and doors; parts and fittings therefor; all the aforesaid goods being wholly or principally metallic

Machine parts, namely, dust explosion vent modules for machines and apparatuses for drying plants and for filtering apparatuses, and dust explosion vent modules for storage devices, namely, for containers and for silos; structural parts and accessories, not included in other classes, for the aforesaid modules, namely, frames and membranes