The ability to use pigments allowed in contact with food (Food grade) in the inner layer Being hygienic and not affecting the smell, taste, color and taste . Ability to use conventional polyethylene joints (e) higher mechanical strength due to the creation of molecular arrangement on the surfaces of the layers due to six Mojo surfaces in a three-layer tube compared to the presence of only two internal and external surfaces of a single-layer tube). Radiometric capability, filming and troubleshooting by X-rays More uniform thickness distribution in the longitudinal and transverse sections of the pipe Resistance to acids and bases The ability to add special chemicals to the outer layer without affecting the smell, taste, and taste of water. The resistance of the pipe, to protect it against rodents such as rats, and better weldability due to the presence of an inner layer without black carbon.