06
Common metals and their alloys; metal building materials;
pipe work of metal; tubes of metal; steel tubes, penstock
pipes of metal; poles of metal; drill collars, drill rods,
solid bars, linkage of tubes, drill pipes, all the
aforementioned goods of metal
07
Machines and machine tools; motors and engines (except for
land vehicles); machine coupling and transmission components
(except for land vehicles); earth augers; drilling heads
(parts of machines); drilling bits (parts of machines);
drilling machines; drilling tools, drilling motors;
displacement motors; eccentric screw motors; moineau motors;
mud motors; ground drilling apparatus; directional drilling
apparatus; drilling rigs, floating or non-floating; oil
refining machines; conveyors [machines]; electric scissors;
chisels for machines; mortising machines; metalworking
machines; pumps [machines]; displacement pumps; moineau
pumps; mud pumps; feed pumps; pumps (parts of machines,
engines or motors); pneumatic tube conveyors; control
mechanisms for machines, engines or motors; self-regulating
fuel pumps
09
Scientific, nautical, surveying, optical, weighing,
measuring, signalling, checking (supervision), life-saving
and teaching apparatus and instruments; measuring apparatus;
measuring instruments; levelling staffs (measuring
instruments); probes for scientific purposes; drilling
probes; surveying apparatus and instruments
40
Treatment of materials; processing of oil; metal tempering;
custom assembling of materials for others; steel processing;
steel treating, metal working, metal treating
42
Scientific and technological services and research and
design relating thereto; industrial analysis and research
services; oil prospecting; oil-well testing; analysis for
oil prospecting; oil-field surveys; mechanical research;
geological research; geological surveys; construction
drafting; well logging; scientific and technological
services in the fields of drilling wells consisting of
curved and/or straight sections along a determined route and
at a required angle
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