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Jumping Jet fountain known as a water jet or water jet fountain, is an industrial tool capable of cutting a wide variety of materials using a very high-pressure jet of water, or a mixture of water and an abrasive substance. The term abrasive jet refers specifically to the use of a mixture of water and abrasive to cut hard materials such as metal or granite, while the terms pure water et and water-only cutting refer to water jet cutting without the use of added abrasives, often used for softer materials such as wood or rubber.Water jet cutting is often used during fabrication of machine parts. It is the preferred method when the materials being cut are sensitive to the high temperatures generated by other methods. 

Water jet cutting fountain  is used in various industries, including mining and aerospace, for cutting, shaping, and reaming.