High temperature resistance, improved mechanical behavior and long-term applicability at moderate temperature are among the properties that distinguish Engineering Plastics from the popular commodity plastics such as PE, PP and PVC. This high-performance group of plastics have replaced metal, wood and ceramics in many applications due to their higher strength/weight ratio, processability and cost-effectiveness. Polyamides, polyacetal and poly (methyl methacrylate) (PMMA) are among the most prominent engineering thermoplastics which are frequently used to produce high-quality industrial products such as mechanical unites under stress (e.g. cams, gears and couplings), low friction components (e.g. wear surfaces, slides and bearings) and chemical and heat resistant equipment (e.g. automotive parts and aerospace components).