OTK possesses advanced technology that is highest level in the world. We manufacture a wide variety of steel pipes, contributing to many industrial fields around the world.			Sakhalin Project
		Blue Stream Project

●Oil And Natural Gas Industries

●Structures

			Oil Refineries
	Offshore Structures (Jackets)				Roppongi Hills		Tokyo Skytree

●Power Plants

●Industrial Machinery

			Paper Machines
	Thermal Power Plant
					Large Scale Power Shovels