| 65119 | Macadam, tarred, transportation of, by road in specialized vehicles | |
| 23721 | Macaroni, cooked, ready for consumption after heating, whether or not mixed with tomato sauce | |
| 23710 | Macaroni, not cooked or otherwise prepared | |
| 23721 | Macaroni, partially or completely cooked, whether or not dehydrated | |
| 23923 | Mace, crushed or ground | |
| 01653 | Mace, dried, neither crushed nor ground | |
| 43911 | Macerating vessels, brewing, incorporating thermal equipment | |
| 42921 | Machetes | |
| 88215 | Machine covers manufacturing services | |
| 83449 | Machine parts, magnetic testing of | |
| 83449 | Machine parts, radiographic testing of | |
| 83449 | Machine parts, ultrasonic testing of | |
| 44221 | Machine tools for cold-working glass (excl. sand-jet engraving machines) | |
| 44211 | Machine tools for working by electron beam processes | |
| 44211 | Machine tools for working by ionic beam processes | |
| 44211 | Machine tools for working by plasma-arc processes | |
| 88772 | Machine tools manufacturing services | |
| 73129 | Machine tools, rental or leasing of, without operator | |
| 44211 | Machine tools, ultrasonic, for shaping minerals | |
| 44211 | Machine tools, ultrasonic, for working diamond or metal carbide dies | |
| 44251 | Machine vices, fixed, revolving or adjustable | |
| 44720 | Machine-guns | |
| 44720 | Machine-pistols, military | |
| 87320 | Machinery and equipment n.e.c., installation of | |
| 87156 | Machinery and equipment n.e.c., maintenance and repair of | |
| 44629 | Machinery for making felt hats | |
| 44629 | Machinery for the manufacture or finishing of felt or nonwovens in the piece or in shapes | |
| 71334 | Machinery insurance policies, underwriting of | |
| 62389 | Machinery n.e.c., other, mail order retail trade services of | |
| 62189 | Machinery n.e.c., other, non-specialized store retail trade services of | |
| 62489 | Machinery n.e.c., other, other non-store retail trade services of | |
| 62589 | Machinery n.e.c., other, retail trade services of, on a fee or contract basis | |
| 62289 | Machinery n.e.c., other, specialized store retail trade services of | |
| 61189 | Machinery n.e.c., other, wholesale trade services of, except on a fee or contract basis | |
| 61289 | Machinery n.e.c., other, wholesale trade services of, on a fee or contract basis | |
| 73129 | Machinery n.e.c., rental or leasing of, without operator | |
| 27998 | Machinery parts of textile fabrics (excl. belts and belting, hose-piping and similar tubing, wicks and gas mantles) | |
| 83812 | Machinery, photographing of | |
| 44194 | Machinery, poultry-keeping, non-industrial | |
| 81129 | Machinery, research and experimental development concerning | |