are toughness and sealability, low cost, easy to process, flexible, heat-resistant and retains flexibility over a wide range of temperature, It is chemically inert and has good resistance to acids and alkalis.
are toughness and sealability,low cost, easy to process, flexible, heat-resistant andretains flexibility over a wide range of temperature, Itis chemically inert and has good resistance to acidsand alkalis.