Screening machines, drying shaker machines, dewatering machines, power-operated shaker screens for sorting sand, and machines used to clean and classify sand in golf courses; power-operated vibratory screen separators, power-operated vibratory screen separators for use in golf courses, clubs and parks; vibrating machines; poweroperated tools, namely, sand cleaners, desanders, desilters; complete slurry processing machine systems comprising tanks, shakers, desanders, desilters

beach erosion control barriers comprised of rotationally molded polyethylene