KR

Marketing studies; marketing research; import-export agencies; auctioneering; sales promotion for others

Repair information; construction; underwater repair; commercial housing construction; mining extraction; drilling of wells; drilling of deep oil or gas-wells; boiler cleaning and repair; burner maintenance and repair; electric appliance installation and repair; machinery installation, maintenance and repair; rebuilding engines that have been worn or partially destroyed; rebuilding machines that have been worn or partially destroyed