109 | Maintenance systems, instruction material |
51 | Insulation, panels, bulkheads, doors, sidescuttles,skylights |
512 | Doors w/coamings in accommodation |
513 | Other internal doors w/coamings |
514 | External doors w/coamings |
515 | Side scuttles and windows w/equipment |
951 | Doors and windows installations, turnkey/complete |