6
Metal fasteners; expansion bolts of metal; tensioners of metal for use in bolted assemblies; bolting, fastening and tensioning systems of metal; parts and fittings for the aforesaid goods
7
Expansion bolts [parts for machines, motors and engines, tools and apparatus]; hydraulic bolts; hydraulic bolt tensioning apparatus; hydraulic machines, tools and apparatus; mechanical clamping elements and clamping devices with multiple screws; machine parts, namely mechanical clamping devices; bolt tensioning apparatus; machines, tools and apparatus for fastening and joining; machine tools for tensioning and releasing of bolts and of fastening devices incorporating bolts; mechanical prestressing systems for large-diameter screws for use in the construction of heavy machinery; parts and fittings for all the aforesaid goods
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