| 2401 | Precast Segmental Wall | Company Product |
| 2402 | Precast Service Duct Moulds | Company Product |
| 2403 | Precast Solution | Company Product |
| 2404 | Precast Staircase Flight Moulds | Company Product |
| 2405 | Precast Staircase Wall Moulds | Company Product |
| 2406 | Precast Trellis Moulds | Company Product |
| 2407 | Precast Vebtilation Block | Company Product |
| 2408 | Precast Ventilation Block | Company Product |
| 2409 | Precast Wall Moulds | Company Product |
| 2410 | Precious Metal | Company Product |
| 2411 | Precious Metal Extraction | Company Product |
| 2412 | Precious Metals | Company Product |
| 2413 | Precious Stones | Company Product |
| 2414 | Precision | Company Product |
| 2415 | Precision Balances | Company Product |
| 2416 | Precision Bearings | Company Product |
| 2417 | Precision Filters | Company Product |
| 2418 | Precision Gauges | Company Product |
| 2419 | Precision Hand Tools | Company Product |
| 2420 | Precision High-Pressure Grease Guns | Company Product |
| 2421 | Precision Lathe Machine | Company Product |
| 2422 | Precision Lathes | Company Product |
| 2423 | Precision Measurement | Company Product |
| 2424 | Precision Measuring Instruments | Company Product |
| 2425 | Precision Measuring Tools | Company Product |
| 2426 | Precision Microregulators | Company Product |
| 2427 | Precision Milling Machines | Company Product |
| 2428 | Precision Planetary Gearboxes | Company Product |
| 2429 | Precision Positioning Tables | Company Product |
| 2430 | Precision Power Analyzers | Company Product |