This volume contains a selection of papers submitted to the 7th Asia Conference on Mechanical and Materials Engineering (ACMME 2019) held in Tokyo, Japan from June 14-17, 2019. The collection presents recent advances in the field of materials engineering and manufacturing technologies. We hope that this book will be useful and interesting for many researchers and engineers. Engineering Tribology, Surface, Coatings, Steel, Alloys, Biomaterials, Adsorbent, Coagulation, Membrane, Composites, Building Materials, Materials Processing, Hot Extrusion, Die Casting Materials Science, Building Materials, Mechanical Engineering.