فهرس المقالات Engine Tappet حرية الوصول المقاله صفحة الملخص نص كامل 1 - Casting Process Simulation of Engine Tappet and Checking the Various Features of the Casting Process Zahra Arzaqi Fateme badretalei sana chizari Omid Ashkani shahram mahboubizadeh Mohammad Reza Tavighi