109 | Maintenance systems, instruction material |
304 | Smaller hatches, grain hatches, manhole covers |
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 |
52 | Internal deck covering, ladders, steps, railing |
53 | Ext. deck covering, ladders, steps, fore, aft gangway |
57 | Ventilation, air-conditioning, heating systems |
951 | Doors and windows installations, turnkey/complete |