koroze materialu 1,176 machine parts and joints 1,163 ohrana materialu 1,161 corrosion of material 365 preservation of material 55 corrosion protection 51 material testing 41 more ... surface treatment of materials 30 steel 23 material defects 22 gas pipes 20 resistance 16 pipelines 15 simulation and modelling 15 iron-concrete constructions 15 materials 14 concretes 13 corrosion resistant steels 13 soils 13 metal materials 12 metals 12 inhibitors 10 alloys 10 wandering currents 9 nuclear reactors 9 material engineering 9 coatings 9 high temperatures 9 fatigue of material 9 water 8 less ...