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Chapters
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Terrain
F6. Terrain
F6001
Soil investigation and retaining walls
F6002
Environmental soil examination
F6003
Shelter and bicycle shed
F6004
Fencing, gates and barriers
F6005
Garden work
F6006
Surface finishing, hardening
F6007
Drainage
F6008
Drainage by well points
F6009
Earthwork
F6010
Outside sewer and tanks