[Class : 37] Construction Services; Maintenance Services; Installation And Repair Services; Construction And Demolition Of Buildings, Roads, Bridges, Dams Or Transmission Lines, As Well As Services In The Field Of Construction, For Example, Interior And Exterior Painting, Plastering, Plumbing, Heating Equipment Installation, And Roofing; Construction Consultancy; Building Restoration Services; Installation Of Utilities In Construction Sites; Factory Construction; Pipeline Construction And Maintenance; Warehouse Construction And Repair; Railway Signaling And Tunneling Ohe (Overhead Electrification),Tss (Traction Substation), Ssp (Sub Sectionalizing Post), Sp(sectionalizing Post) ; Metro Scope; Smart City ; Operation And Maintenance Of Solar And Mep Services.