Specifications include, but are not limited to: Grader blades of various types and sizes; grease; oil; gasoline; diesel fuel; weed killers; various types and grades of lumber; creosote lumber and pilings; concrete pilings; concrete and asphalt (F.O.B. Plant site and delivered prices); cost per ton per truck mile by gallon for liquid asphalt, distributed for sealing and priming, or by the hour for County maintained roads; various sizes and grades of gravel and crushed lime stone (F.O.B. Plant site and delivered); steel of various sizes and grades (F.O.B. Plant site and delivered); laying and spreading of asphalt by the ton; state approved striping paint by gallon and by drum; Courthouse and office supplies/equipment; janitorial supplies and equipment; the buying, renting, or leasing of power saws, small power equipment and accessories; and the hourly wages and/or rates for hire of machines, operators, and equipment for mowing, bushhogging and highway striping.