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Categories
| CATEGORY NAME |
| E13004 REHABILITATION OF STRUCTURES |
| E13006 RENOVATION OF HISTORICAL STRUCTURES-SPEC.IN MUSEUMS,LIBRARIES, ETC. |
| F04500 MASONRY RESTORATION, CLEANING, REPOINTING |
| F06130 HEAVY TIMBER CONSTRUCTION |
| F08100 DOORS AND FRAMES |
| F08500 WINDOWS |