Yes, a toughened glass manufacturing business can be profitable. Toughened glass is in high demand for its strength and safety features in various industries including construction, automotive, and electronics.Yes, a toughened glass manufacturing business can be profitable. Toughened glass is in high demand for its strength and safety features in various industries including construction, automotive, and electronics.Yes, a toughened glass manufacturing business can be profitable. Toughened glass is in high demand for its strength and safety features in various industries including construction, automotive, and electronics.