9 Computer software for determining the mechanical properties of materials; instruments, namely, digital indicators and controllers for measuring properties of materials, namely, metals, plastics, building materials in the nature of concrete, wood, re-bar and cement, soil, adhesives, rubbers and textiles; laboratory instruments, namely, digital indicators and controllers for measuring properties of human tissue and bone; electromechanical and hydraulic testing machines for determining the mechanical properties of metals, plastics, rubber, textiles, adhesives, soil, human tissue and bone, and building materials in the nature of concrete, wood, re-bar and cement