7 Machines, not included in other classes, for industrial purposes, namely, industrial machines for treating liquids and gasses; industrial machines for generating electric power; and machine tools, namely, tools for machining in the nature of metalworking machining centers; valves of metal parts of machines; hydraulic and mechanical propulsion mechanisms except for land vehicles, namely, propulsion mechanisms for ships in the nature of boat engines and motors for boats, pneumatic blowers; hydraulic tools being hydraulically powered tools, namely, hydraulic hammers, hydraulic excavators; pumps being parts of oilfield wellhead machines, namely, industrial pumps for pumping liquids and gasses; elevating apparatus, namely, hoists, hoisting cranes and elevating or lifting work platforms; compressed air tools being tools powered by compressed air, namely, sanders, polishers, routers, jigsaws, circular saws, chain saws, drilling machines, screwdrivers, milling machines, grinders; compressor machines; pump compressor installations for oil or gas; non-electric welding apparatus, namely, gas welding machines; welding machines, namely, gas welding machines, electric welding machines, and welding torches; drive chains being parts of machines; electric motors and internal combustion engines other than for land vehicles; generators, namely, electric generators and fuel or gas operated power generators; parts of engines and turbines for land vehicles; cog wheel boxes and cog wheel reduction boxes being parts of machines; machine couplings; turbines except for land vehicles; installations for generating energy, namely, electric generators and fuel or gas operated power generators; machines for treating hydrocarbons, oil and gas and other chemical products; parts not included in other classes of the aforesaid goods