7 Installations and equipment for iron and steel and metallurgical furnaces or for shaft furnaces not included in other classes, namely metalworking machine tools; loading installations and equipment for shaft furnaces, more specifically for blast furnaces, namely loading and unloading machines; machines for the metallurgical and iron and steel industry, namely metal cutting and casting machines; motors and engines other than for land vehicles; machine couplings and transmission components other than for land vehicles; foundry machines, namely rolling mills for metalworking; automatic handling machines, namely, manipulators, for forging presses and for forging machines; conveyors; loading ramps in the nature of slides, namely powered ramps; feeding apparatus for iron and steel furnaces, metallurgical furnaces and shaft furnaces, namely, conveyors; loading devices for iron and steel furnaces, metallurgical furnaces and shaft furnaces, namely, loading and unloading machines; equipment for steel works, namely metalworking machine tools; hydraulic controls for machines; control devices for machines, namely transmissions for machines; hydraulic or pneumatic devices for opening or closing loading devices for iron and steel furnaces, metallurgical furnaces and for shaft furnaces , namely hydraulic door openers and closers; hydraulic or pneumatic devices for opening or closing valves, airlocks and doors for iron and steel furnaces, metallurgical furnaces and for shaft furnaces, namely, hydraulic door openers and closers; mechanical discharging hoppers for unloading and loading; rotary slide guides and spillways, namely loading and unloading machines; stands for machines; valves being parts of machines; clack valves being parts of machines; gears other than for land vehicles; hydraulic circuits and controls and their components not included in other classes, namely hydraulic controls for machines, motors and engines; driving chains other than for land vehicles; sludge pumps; silt pumps; pumps for machines; electric pumps for heating installations; hydraulic presses for metalworking; electromechanical machines for the chemical industry, namely dissolving machines for chemical processing; tools and machines for metalworking, namely cutting machines for metalworking and shaping machines for metalworking; filtering machines for chemical processing; filters for machines for the waste recovery of metal; filters for motors and engines; machines for sorting recyclable materials; machines for sorting recyclable raw materials; industrial machines for waste compacting; machines for sorting industrial waste; machines for sorting industrial waste from the metallurgical industry; centrifugal separators; ore treating machines