Tactile concrete tiles for the visually impaired

We are manufacturers, we will prompt, advise, help with miscalculations, give a guarantee. There are certificates. We have everything for the improvement of the moment (plates, tiles, handrails, lifts, ramps) Color: yellow, gray Tactile indicator: cone, guides, turns Size: 300 x 300 mm (500 * 500 on order) Base thickness: 30-50 mm Material: Iranian concrete M600