... SBR,NR,CR,EPDM,FKM Rubber with metal screwsFeatures:1) Materials: different kinds of rubber & plastic, such as SILICON,NBR, ... resistancesteam resistanceburning resistanceage resistance (stored properly) - Y=yearNBR(N)SS120GSEG-40GEGSSEGGSD5~10EPDM(E)EE150EDE-50GEGEGEEGEGD5~10CR ( C ) ... (A)EE150DEE-25SSSDDSDSD~20Remarks: E=excellent,G=good,S=satisfying,D=badcolor: refer to the pantone numberPacking: ...