طراحی و محاسبات ساختمان

Training and presentation of pamphlets, and important points of design and calculations of concrete and steel structures, how to prepare the golden package of structural calculations http://www.PlanNegar.com/film.aspx. Comments and receipt channel https://t.me/+SdfyHiFN2UkBWnTV How to contact the teacher: 🆔@rasouliomid