Custom manufacture of goods in the nature of airplane parts and fittings, satellites parts and fittings, engine parts and fittings, defense aircraft parts and fittings, space vehicle parts and fittings, launchers and launch pads and parts and fittings therefor, helicopter parts and fittings, turbine and nacelle parts and fittings, boats, canoes and dinghies and parts and fittings therefor, wheels, brackets, and ducts, and industrial parts to the order and specification of others; treatment of materials, namely, for the manufacture of thermoplastic products by extrusion, compression moulding and plastic injection; treatment of materials for use in the aerospace, aviation, satellite, military, space and defense industries; treatment of materials, namely, selective laser sintering for a wide variety of goods