المواصفات القياسية للأسمنت والخرسانة: لبناء مستدام محافظ ...
لمحة عن المدرب. Richard S. Szecsy, PhD., PE has worked internationally as a technical expert and busine development director for a 4 billion dollar ready mix and aggregate company, a Department Head at a university, a Vice-President and Board member for one of the largest privately held ready-mix concrete and aggregate companies in the US, and is now serving as President & CEO of ...
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