| 83342 | Harbours, electrical engineering design services for the construction of | |
| 83332 | Harbours, electrical installation appraisal of | |
| 83332 | Harbours, engineering advisory and pre-design services for the construction of | |
| 54230 | Harbours, general construction of | |
| 83392 | Harbours, geotechnical engineering services for the construction of | |
| 83392 | Harbours, groundwater assessment for the construction of | |
| 83312 | Harbours, integrated engineering services for the construction of | |
| 83342 | Harbours, mechanical engineering design services for the construction of | |
| 83332 | Harbours, mechanical installation appraisal of | |
| 83392 | Harbours, other engineering services for the construction of | |
| 83322 | Harbours, project management services concerning the construction of | |
| 83342 | Harbours, specialty engineering design services for the construction of | |
| 83342 | Harbours, structural engineering design services for the construction of | |
| 83392 | Harbours, structural failure investigation of | |
| 83332 | Harbours, structural installation appraisal of | |
| 83352 | Harbours, technical inspection services during the construction of | |
| 83392 | Harbours, undertaking contamination studies of | |
| 83332 | Harbours, undertaking environmental impact studies of | |
| 83332 | Harbours, undertaking project impact studies of | |
| 83332 | Harbours, undertaking technical feasibility studies of | |
| 45270 | Hard disk (disc) drives | |
| 36970 | Hard hats (safety headgear) | |
| 45270 | Hard magnetic disk (disc) drive unit for automatic data processing machines (computers) | |
| 88219 | Hard metallic carbide parts, grinding and cutting of | |
| 31440 | Hardboard, perforated | |
| 31440 | Hardboard, surface-worked or surface-covered with metal, plastic, paper or paint | |
| 31440 | Hardboard, whether or not bonded with resins or other organic substances, of a density exceeding 0.8 g/cm3, whether or not mechanically worked or surface-covered | |
| 42921 | Hardies, smiths', of base metal | |
| 83562 | Hardness testing and analysis of concrete | |
| 83562 | Hardness testing and analysis of glass | |
| 83562 | Hardness testing and analysis of metals | |
| 83562 | Hardness testing and analysis of other materials | |
| 83562 | Hardness testing and analysis of plastics | |
| 83562 | Hardness testing and analysis of textiles | |
| 83562 | Hardness testing and analysis of wood | |
| 48262 | Hardness-testing machines, mechanical, for testing industrial materials | |
| 83141 | Hardware and software integration, consulting services concerning | |
| 83141 | Hardware consultancy services | |
| 87130 | Hardware, computer, maintenance and repair of | |
| 87130 | Hardware, computer, servicing of | |