SB

[ Common metals and their alloys; pipework of metal; steel pipes; poles of metal; drill collars, namely, extremely thick-walled metal drill pipes having a higher weight than regular drill pipes; solid bars in the nature of steel bars, cold-finished steel bars for drilling equipment, drill collars, solid steel collars, drill columns, boring rods, all of the aforesaid goods being of metal ]

[ Machines and machine tools, namely, drilling heads as parts of machines, drilling bits for rock drilling, gas drilling, oil drilling, drilling tools in the nature of drilling machines, directional drilling equipment in the nature of drilling tools machines, metalworking machines; motors and engines except for land vehicles, namely, drilling motors, positive displacement motors, eccentric screw motors, fluid-driven positive displacement motors, and down hole motors; machine tools, namely, cutter bars of metal for auger tools and directional drilling tools ]

[ Measuring instruments, namely, distance, inclination and azimuth measuring apparatus; surveying apparatus and instruments ]

[ Directional drilling, namely, oil well directional drilling, directional drilling of wells, directional gas drilling ]

Treatment of materials, namely, metal tempering, custom assembling of materials for others, namely, steel processing, steel working, metal treating and metalworking in the nature of metal treatment, metal tempering

[ Well logging ]