Machines and machinery relating to the meat industry, namely, power-operated meat injection machines, marinating injection machines, fish injection machines, fluid injection machines; filter for use in an injector of brine for meat pieces; meat filling machines; machines for cutting and sealing pieces of meat; brine preparation machines; meat tenderizing and pre-massaging machines; machines for massaging pieces of meat; computer-controlled power-operated meat maceration machines; molding machines for pieces of meat, industrial cooking machines for pieces of meat, machines for cooling pieces of meat, automatic mold-release machines for pieces of meat, machines for clipping pieces of meat; machines for thawing pieces of meat, machines for freezing pieces of meat, machines for curing and drying pieces of meat; replacement fittings and spare replacement parts for all of the above-mentioned machines; the aforementioned machines expressly excluding transmission shafts, crank shafts, axles, connecting rods, wheels being parts of machines, vacuum pumps and valves