Food processing machines and apparatus; meat processing machines and apparatus; meat slaughtering machines and apparatus; incising machines for meat processing; cutting machines for meat processing; cleaning machines for meat processing; heaters and coolers for meat processing; apparatus for removing spinal cord of cattle for meat processing; disinfecting apparatus for meat processing; stirring and mixing machines for meat processing; stirring and mixing machines for commercial use; loading-unloading machines and apparatus; conveyors; belt conveyors; roller conveyors; chain conveyors; magnetic conveyors; bucket elevators; packing or wrapping machines and apparatus; meat packing or wrapping machines and apparatus; chicken egg packing or wrapping machines and apparatus; metalworking machines and tools; secondary metal forming machines and apparatus; apparatus for removing metal cutting oil adhered to metal mechanical parts; mechanical part cleaning apparatus; chemical processing machines and apparatus; filtering machines; separating machines; separating and filtering machines for metal cutting oil