7 Power-operated machines for coloring ground cover; power operated mixing machine used to apply colorant [sand, ] rubber, [ rock, stone, aggregate, ]mulch, wood [, and similar materials] ; colorant metering system composed of one or more peristaltic pumps with a variable motor speed control, for mounting on any type of mixing system to meter a consistent amount of colorant and water together for coloring sand, rubber, rock, stone, aggregate, mulch, wood, and similar materials; colorant metering system composed of a pump, motor, and plumbing, for attachment to a grinder, trommel screen, or other equipment for processing sand, rubber, rock, stone, aggregate, mulch, wood, and similar materials; power-operated mixers for mixing colorant for sand, rubber, rock, stone, aggregate, mulch, wood, and similar materials; conveyors; parts and components for the aforesaid goods