S

Common metals and their alloys, namely, steel and steel alloys, stainless steels, duplex steels, nickel alloys, copper alloys, aluminum alloys, titanium; pipes and tubes of metal, namely, piping and tubing of metal, piping and tubing components of metal, piping and tubing fittings and assemblies of metal for industrial facilities

Machines and machine tools, namely, transmission shafts other than for land vehicles; mine borers; drilling machines; grinding machines; steam/oil separators; steam condensers; steam engines; compressed air pumps; printing machines; oil refining machines; ore treating machines; transmissions, other than for land vehicles; belts for conveyors; pneumatic transporters; blowing machines for the compression, exhaustion and transport of gases; aerators; gasifiers; transmissions for machines; hydraulic engines and motors; steam engine boilers; air condensers; compressors for refrigerators; couplings other than for land vehicles; vacuum pumps, machines; pneumatic tube conveyors