06
Building materials of steel, namely: steel reinforcements,
cantilevers for insulating slabs, connection fittings for
stairs, formwork elements, formwork and permanent forms,
expansion joint elements, prefabricated reinforcements,
reinforcement mesh, and other prefabricated reinforcement
elements, drawbeams, compression bars and other elements
under traction or compression for connecting two concrete
elements, stanchion reinforcements
19
Non-metallic building materials and reinforcements, namely
reinforcement connectors, cantilevers for insulating slabs,
connection fittings for stairs, formwork elements, forms and
permanent forms, expansion joint elements, prefabricated
reinforcements, reinforcement mesh, and other prefabricated
reinforcement elements, drawbeams, compression bars and
other elements under traction or compression for connecting
two concrete elements, stanchion reinforcements
42
Instruction services for engineering works, namely:
production of planning charts, tables and lists for the
preparation of planning work for engineers for constructing
connectors for reinforcements, cantilevers insulating slabs,
connecting elements for stairs, formwork elements, formwork
and permanent forms, elements for expansion joints,
prefabricated reinforcements, reinforcement mesh, other
prefabricated reinforcement elements, drawbeams, compression
bars and other traction or compression elements for
connecting two concrete elements, stanchion reinforcements
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