7 parts of agricultural machines for use in tractors, combines and wind rowers, namely, hydraulic filters, hydraulic cylinders, ball bearings, roller bearings, needle bearings, slip plates, rotary cutters, gathering chains, bead busters, conveyor belting and roller chains; power washers for agricultural use; * NON-METAL MECHANICAL SEALS FOR AGRICULTURAL EQUIPMENT SOLD PRIMARILY THROUGH AGRICULTURAL EQUIPMENT DEALERSHIPS OR OTHER AGRICULTURAL RETAIL OUTLETS; HYDRAULIC RUBBER HOSES FOR AGRICULTURAL EQUIPMENT SOLD PRIMARILY THROUGH AGRICULTURAL EQUIPMENT DEALERSHIPS OR OTHER RETAIL OUTLETS; AND PROTECTIVE RUBBER TIPS FOR AGRICULTURAL EQUIPMENT SOLD PRIMARILY THROUGH AGRICULTURAL EQUIPMENT DEALERSHIPS OR OTHER AGRICULTURAL RETAIL OUTLETS; * internal combustion engine parts, namely, pistons, turbochargers, timing chains, oil and fuel filters and mufflers; parts of tillage machines, namely, disc harrow blades, sweeps and tynes, pulleys and drive lines; replacement internal combustion engines for agricultural machines and land motor vehicles; internal combustion engine rebuild kits comprised of pistons, rings, gaskets and bearings, sold as a unit