... low temprature.CR: high tensile strength,good tearing property,heat resistance,abrasion resistance,oil resistance,acid resistance, ... compressive strain.EPDM: high tensile strengh,good tearing property,abrasion resistance,ageing resistance,ozeone resistance,good flex ... alkali resistance.NR: high tensile strength,good tearing property,abrasion resistance,heat resistance,acid resistance,alkali resistance. ...