... ,SBR,CR,NBR,FPM etc. 3.UV,FR,oil proof,shock proof etc. 4.ODM,OEM,make as your drawing SR ... resistance,good flex performance at low temprature,perfect electrical performance,acid resistance,alkali resistance.NR: high tensile strength,good tearing ... property,abrasion resistance,heat resistance,acid resistance,alkali resistance.FPM:high tensile strength,good tearing property ...