[Class : 37] Building And General Contractors, Civil And Structural Engineering, Structural Concrete Repairs, Reinforced Concrete Specialist, Supply, Installation And Servicing Of Reinforced Bar Coupler, Post Tensioning And Pre Stressing Contractors, Geo Technical And Foundation Works And To Manufacture Pre Stressed Concrete Products, Structures, Beams, Pillars, Girders And Structural Material And To Do The Business Of Building And Structural Contractors And To Carry Out On Contract Or Otherwise The Construction Of Bridge, Roads, Workshops, Godowns, Dams, Wharfs, Water Courses And Reservoirs And Other Works In The Construction Of Which The Pre Stressed Concrete Products Are Used.