[Class : 11] Furnaces For Melting Metals; Melting Furnaces For Industrial Purposes; Furnaces For Reducing Iron Ores; Melting Furnaces For Manufacturing Reduced Irons; Heating Furnaces For Industrial Purposes; Industrial Furnaces; Garbage Incinerators For Industrial Purposes; Refractory Furnaces; Blast Furnaces; Nuclear Reactors; Incinerators; Coke Furnaces; Heating And Air Conditioning Apparatus; Water Supply Installations; Water Distribution Installations; Solar Energy Collectors; Boilers For Power Plants.[Class : 37] Maintenance Of Manufacturing Facilities For Reduced Irons; Maintenance Of Reduction Facilities For Iron Oxides; Maintenance Of Cleaning Facilities For Gases Generated From Furnaces; Maintenance Of Manufacturing Facilities For Melted Pig Irons; Maintenance Of Steelworks Furnaces And Ancillary Facilities Thereof; Repair Of Manufacturing Facilities For Reduced Irons; Repair Of Reduction Facilities For Iron Oxides; Repair Of Cleaning Facilities For Gases Generated From Furnaces; Repair Of Manufacturing Facilities For Melted Pig Irons; Repair Of Steelworks Furnaces And Ancillary Facilities Thereof; Installation Of Manufacturing Facilities For Reduced Irons; Installation Of Reduction Facilities For Iron Oxides; Installation Of Cleaning Facilities For Gases Generated From Furnaces; Installation Of Manufacturing Facilities For Melted Pig Irons; Installation Of Steelworks Furnaces And Ancillary Facilities Thereof; Furnace Installation And Repair; Installation Of Industrial Furnaces; Blast Furnaces Installation.[Class : 42] Design Of Manufacturing Facilities For Reduced Irons; Design Of Reduction Facilities For Iron Oxides; Design Of Cleaning Facilities For Gases Generated From Furnaces; Design Of Manufacturing Facilities For Melted Pig Irons; Design Of Steelworks Furnaces And Ancillary Facilities Thereof; Engineering Services Relating To Metal Forming Systems; Research Relating To Metals; Engineering Services Relating To Metal Handling Systems; Technology Evaluation Of Others For The Purpose Of Certification In The Field Of Machine Materials; Research In The Field Of Welding; Electrical Engineering Services; Product Design; Engineering Surveying.