0 The types and the properties of the soil July 15, 2014 by Heba Soffar · Published July 15, 2014 · Last modified August 30, 2019
0 The structure and the importance of the levers June 8, 2014 by Heba Soffar · Published June 8, 2014 · Last modified August 30, 2019
0 Thermosets uses, features, advantages and disadvantages June 18, 2017 by Heba Soffar · Published June 18, 2017 · Last modified September 11, 2019
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