Hoses intended for the transmission of gases such as oxygen, carbon dioxide, acetylene, nitrogen, argon, propane, butane – instead of welding. Made in accordance with EN 559 standards. They are characterized by high flexibility and can be reinforced with different types of braids. To transport the above-mentioned gases, the use of the right colors of hoses has been accepted. The blue color is assigned to oxygen transmission, black to compressed air, carbon dioxide, nitrogen and argon, while red is intended for acetylene and other types of combustible gases [without LPG, methane and natural gas]. The criterion for selecting a hose in the case of gas mixtures should be the dominant medium in the mixture.