如果您是土木工程，此應用程序為您製作，包含計算和解釋
This application is specially design with focus on Calculation that use in construction field like cement,sand & Aggregate Calculation of Concrete, Mortar used in plaster, Brick work that done on site, grade of Concrete. This application also contain Calculation of quantity of trapozidal footing with figure explain and Calculation. So try it and if you have any suggestions kindly email me.