12th Basic Mechanical Engineering Practical Materials Namma Kalvi » 12th Standard Study Materials » 12th Basic Mechanical Engineering Study Materials » 12th Basic Mechanical Engineering Practical Materials 12th Basic Mechanical Engineering Practical Manual (செய்முறை) Tamil Medium – Preview & Download (MAT.NO. 221380) English Medium – Preview & Download (MAT.NO. 221381) 12th Basic Mechanical Engineering Practical Model Question Paper (Model Practical Exam) | CEO, Chennai – Preview & Download (MAT.NO. 221374)