| 331 | Mandel Cube | Company Product |
| 332 | Mandel Curve | Company Product |
| 333 | Mandel Long | Company Product |
| 334 | Mandel Long Slim | Company Product |
| 335 | Mandel Round | Company Product |
| 336 | Mandrels | Company Product |
| 337 | Maneurop Compressors | Company Product |
| 338 | Manganese Carbonate | Company Product |
| 339 | Manganese Chloride | Company Product |
| 340 | Manganese Compounds | Company Product |
| 341 | Manganese Dioxide | Company Product |
| 342 | Manganese Napthenate | Company Product |
| 343 | Manganese Octoate | Company Product |
| 344 | Manganese Phosphate | Company Product |
| 345 | Manganese Phosphate Electroplating | Company Product |
| 346 | Manganese Sulphate | Company Product |
| 347 | Manhattan Movers | Company Product |
| 348 | Manhattan Moving Companies | Company Product |
| 349 | Manhattan Moving Company | Company Product |
| 350 | Manhole Aluminium Safety Handrail | Company Product |
| 351 | Manhole Covers | Company Product |
| 352 | Manhole Covers & Frame | Company Product |
| 353 | Manhole Covers & Frames | Company Product |
| 354 | Manhole Covers & Safety Accessories | Company Product |
| 355 | Manhole Frames | Company Product |
| 356 | Manhole Gaskets | Company Product |
| 357 | Manhole Moulds | Company Product |
| 358 | Manhole Rubber Gasket | Company Product |
| 359 | Manhole Safety Netting | Company Product |
| 360 | Manholes | Company Product |