35 The bringing together, for the benefit of third parties, of mixtures for the production of technical ceramics, granular and loose ceramic mixtures for sintering, ceramic masses, refractory masses including magnesia, magnesia-chromite, magnesia-olivine, magnesia-alumina and magnesia- carbon, backfills in the nature of magnesia-olivine, chromite, alumina-spinel and silicate-carbon, preparations for protection against fire, refractory preparations, spinel, corundum, chemical preparations for industry, refractory materials, basic refractory materials, magnesia, magnesia-chromite, chromite-magnesia, magnesia-carbon, magnesia-spinel, alumina-graphite, alumina-spinel, magnesia-zirconium and zirconium, building mortars, refractory mortars in the nature of magnesia, magnesia-chromite, chromite-magnesia, chromite, olivine, corundum, zirconium, concrete mixes, magnesia-chromite, alumina-spinel and magnesia, refractory cement coatings, excluding the transport thereof, enabling customers to conveniently view and purchase those goods by means of on-line retail stores