Construction Management Services · Electrical Equipment and Supplies, Sale of Surplus and Obsolete Items · Road and Highway Materials, Including Testing Equipment, Sale of Surplus and Obsolete Items · Electrical Accessories: Alternators, Ammeters, Distributors, Generators, Regulators, Starters, etc. · Construction Materials (Not Otherwise Classified) · Cement, Concrete, Lime, Plaster Mixes, Retarder and Setting Compounds, Sacked, LTL Quantities, (See Class 750 for Bulk Cement, Concrete and Lime) · Concrete, Polymer, All Types · Curing Mixtures, Concrete, All Types · BUILDINGS AND STRUCTURES: FABRICATED AND PREFABRICATED · Bridge Part and Accessories · Fencing, Concrete or Rock · Water Well Drilling Equipment · Sampling Pump Systems, Including Parts and Accessories · Water Well Accessories: Drive Points, Foot Valves and Strainers, Leather Cups, Sucker Rods, Well Cylinders, etc. · Well Pumps, All Kinds · Culverts, Corrugated Metal, Including Well Casing Pipe · Septic Tanks, Grease Traps, and Water Troughs · Water Quality Monitoring Equipment, Laboratory: BOD Analyzers, Turbidimeters, Well Samplers, etc. · EQUIPMENT MAINTENANCE AND REPAIR SERVICES FOR AGRICULTURAL, CONSTRUCTION, HEAVY INDUSTRIAL, MATERIAL HANDLING, AND ROAD AND HIGHWAY EQUIPMENT · Construction Equipment Maintenance and Repair (Not Otherwise Classified)