Cleaning machines for oil and gas industrial machines; Drilling rigs, floating or non-floating; Gas diverters consisting of a pump, storage and refilling tank, pre-heater, vaporizer, recuperator, condenser and valves; High-pressure pumps for use in oil or gas well hydraulic fracturing operations; Machinery, namely, vacuum distillation equipment; Oil-well pumping machines; Oil centrifuges; Oil drain pumps; Oil field equipment, namely, drilling rig mechanical handling machines and devices; Oil filters; Oil refining machines; Oil separators; Oil-water separators for pneumatic controls being part of machines; Parts of oilfield wellhead machines, namely, gate valves, ball valves, check valves, plug valves, globe valves, choke and manifold industrial pumps, pump and valve parts, pipe fittings and flanges; Slurry blender machines for use in oil or gas well hydraulic fracturing operations; Valves being parts of machines; Blending machines for chemical processing; Downhole oil separators for submersible pumps; Extracting machines for chemical processing; Filtering machines for chemical processing; Separating machines for chemical processing