6
Metal girders and rails, metal girders for formwork, scaffolding of metal, rail couplings, equalizing sheet metal, couplings for corners, spacers, scaffolding brackets, clamping pieces
17
Parts for formwork made of semi-processed plastic materials
19
Non-metallic construction materials; wall elements, prefabricated wall elements, girders, planks, plates, framework constructions and special constructions of wood, wood beams, beams of laminated wood, framework beams of wood, wooden formwork beams; construction elements for concrete formwork, framework constructions and constructions made of wooden stanchions for formwork sheets for concrete, formwork panels not of metal; wooden scaffolding; formwork panels of wood combined with another material substituting wood, also combined with metal; formwork elements made of wood combined with another material substituting wood, also combined with metal; formwork panels made of plastic
37
Construction and repair; assembly of formwork, scaffolding
42
Engineering work for projects, plans and construction of buildings; services provided by engineers in connection with assessment, valuation, analysis and appraisal services regarding projects for construction and buildings; advice concerning formwork techniques, stress analysis for formwork; development and monitoring of scaffolding for formwork and for construction
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