AM3D Mechanical Consultant Multi-Disciplinary Plant Engineering & Piping Design Services Piping Design Engineering is a Sub-engineering branch that comes under the mechanical/chemical engineering, and it can be specifically for Power Piping and oil & gas refinery piping and further some Sub specific types of piping come under this. (like utility https://andersongfawl.designertoblog.com/40993070/am3d-mechanical-consultant-multi-disciplinary-plant-engineering-piping-design-services