Q：Hello, there are stools and tiles flooring in the company. Could you have product suitable for the clean dirt? Before that, the cleaning aunt was used hydrochloric acid for clean, but the clean effect is not good and damage the surface.

A：Hello, you can use scale remover DIY set for stools. Because the tile was damage the surface, so we will send the other detergent for you. It is can't damage the surface, you can test the effect.