Characteristics and properties
Are made by a process of vulcanization of rubber, of a metal ring plane, obtained by a blanking process, thus ensuring a perfect insulation of the ring, preventing the separation when used in extreme conditions. The presence of the ring inside, increases, the pressure resistance and can be used to produce various types of metal, as well as various types of rubber, vulcanized to produce the casing, and can be produced in turn in different types of profiles as we will see later. ROTT ASTM / ASME code
