Building construction, repair and installation services including: concreting; preparation of formwork for concreting; preparation of reinforcement for concreting; building site clearance and groundwork; asphalting; bricklaying; building construction supervision; building insulating; building of fair stalls and shops; building sealing; construction; construction information; damp-proofing; demolition of buildings; harbour construction; masonry; painting, interior and exterior; pier breakwater building; pipeline construction and maintenance; plastering; plumbing; re-tinning; rental of bulldozers; rental of construction equipment; rental of cranes; rental of excavators; rental of road sweeping machines; road paving; roofing services; sanding; scaffolding; strong-room maintenance and repair; underwater construction; underwater repair