40 [ Treatment of materials, namely, treatment of materials by laser beam, treatment of materials by milling, treatment of materials by turning, treatment of materials by grinding, treatment of materials by EDM (electrical discharge machining), treatment of materials by hardening, tempering and heat treatment, in particular of prototypes, patterns, models, moulds, tools and small-batch parts and mass-production parts; contract manufacturing, for others, in particular of industrial manufacturing prototypes, patterns, models, moulds, tools and small-batch parts and mass-production parts; injection moulding, investment metal, die, and electro casting and vacuum moulding for others, in particular of plastics, rubber, metal, casting resin and wax ]