19 Non-metallic building materials, namely, depolluting concrete blocks containing titanium dioxide; asphalt, pitch, bitumen, bituminous coatings containing titanium dioxide; binders and hardening products, namely, bitumen and cement; synthetic binders, namely, asphalt; synthetic and natural resins and emulsions, namely, natural and synthetic resin pavement for ground and road surfaces; binders, namely, bitumen, cement; synthetic binders, namely, asphalt; synthetic and natural resins and emulsions, namely, natural and synthetic resin pavement for road repair