| 2311 | Mud Guns | Company Product |
| 2312 | Mud Logging | Company Product |
| 2313 | Mud Pressure Gauges | Company Product |
| 2314 | Mud Pumps | Company Product |
| 2315 | Mud Scrapers | Company Product |
| 2316 | Mud Storage Tank | Company Product |
| 2317 | Mudguard | Company Product |
| 2318 | Mudguard Rubber | Company Product |
| 2319 | Muffler | Company Product |
| 2320 | Mufflers | Company Product |
| 2321 | Mug | Company Product |
| 2322 | Mug & Ladle | Company Product |
| 2323 | Mugwort | Company Product |
| 2324 | Mulit-Function Tool | Company Product |
| 2325 | Mulit-Switches | Company Product |
| 2326 | Multi Articulating Water Towers | Company Product |
| 2327 | Multi Bag Filter Housing | Company Product |
| 2328 | Multi Blocks | Company Product |
| 2329 | Multi Bonds | Company Product |
| 2330 | Multi Cable Transit Systems | Company Product |
| 2331 | Multi Channel | Company Product |
| 2332 | Multi Cutters | Company Product |
| 2333 | Multi Function Weighing Indicators | Company Product |
| 2334 | Multi Function, Multi Point Recorders | Company Product |
| 2335 | Multi Functional Tool | Company Product |
| 2336 | Multi Jet Dry Dial Cold Water Meter | Company Product |
| 2337 | Multi Jet Water Meter | Company Product |
| 2338 | Multi Media Filters | Company Product |
| 2339 | Multi Meter Tester | Company Product |
| 2340 | Multi Network Connectivity Device | Company Product |