[Class : 37] Building Construction; Repair And Installation Services Including Structural Repairs, Building Repairs; Installation, Maintenance And Repair Of Building Content, Maintenance And Repair Of Parts And Fittings For Building; Maintenance And Repair Of Industrial Apparatus; Maintenance And Repair Of Construction Machinery And Equipment; Construction, Maintenance And Repair Of Waste Water Treatment Plants And Repair Of Water Purification Plants Included In Class 37.