The pipe is a long hollow, more often round object, an industrial product based on a hollow profile of constant cross-section for the wire of liquids, solutions, gas, steam and so on.Pipes are manufactured in an industrial way, from metals and alloys, organic materials (plastics, resins), concrete, ceramics, glass, wood and their combination.On an industrial scale, pipes are used to transport various media, insulation, reinforcement or grouping of electrical wires. A metal pipe is widely used in construction as an element of structures (for example, metalwork) or in mechanics (for example, a shaft is a part for transferring rotation).