koroze materialu 1,174 machine parts and joints 1,161 ohrana materialu 1,159 corrosion of material 376 preservation of material 55 corrosion protection 55 material testing 41 more ... surface treatment of materials 30 steel 23 material defects 22 gas pipes 20 resistance 17 pipelines 15 simulation and modelling 15 iron-concrete constructions 15 metals 14 materials 14 concretes 13 corrosion resistant steels 13 metal materials 12 soils 12 inhibitors 10 material engineering 10 alloys 10 fatigue of material 10 wandering currents 9 nuclear reactors 9 coatings 9 high temperatures 9 water 8 less ...