7 concrete block machines and concrete pipe machines for manufacturing concrete blocks, pavers, pipes, box culverts, and manholes and for casting steel reinforcing rings and PVC protective linings into concrete pipes; machines for shaping, handling, racking, transporting, curing, batching, splitting, grinding, and palletizing concrete products, namely, concrete mixers, turnovers, rollovers, de-palleters, cull ejectors, concrete form vibration tables, and concrete pipe handling machines