[Class : 37] Infrastructure Construction, Construction Of Water Supply Installations, Water Supply Installations Maintenance, Beneath Ground Construction Work Relating To Water Supply Pipes, Beneath Ground Construction Work Relating To Water Supply Mains, Civil Infrastructure Construction Including Street Construction, Road Construction, Building Construction, Piler Construction, Factory Construction, Insulation Construction, Construction Services, Sewer Pipe Renovation, Sewer Pipe Maintenance, Cleaning Of Water Tank, Installation Of Water Supply Apparatus, Power Infrastructure Construction, Septic Tank Pumping And Cleaning.