ventilators (mechanical, hygrobalance; on-window, on-glass; concealed) brakes (friction, in-handle) handles (with key, with button) reed switches anchors anti-burglary hardware class RC-1, RC-2 coffers bars (inside glazing package, glued on glass, frame imitating, construction) glazing packages (single-, double- or tripple-; anti-burglary, warm, soundproof, thick, toughened, frosted, ornament, reflex, vitrage) aluminium threshold