Classification according to the nature of the sealing ring to the use of different materials, the nature will have different classification of 1 high temperature resistant sealing ring 2... 4 has the advantages of simple structure, convenient use and maintenance, so that the sealing ring has a longer life. Installation note editor this paragraph... Sealing strips of rubber seal ring, the role of V plastic sealing ring of various kinds of sealing ring sealing ring is an axial effect