... Materials: different kinds of rubber & plastic, such as SILICON, NBR,SBR,NR,CR,EPDM,FKM Rubber with metal screwsFeatures:1) Materials: ... different kinds of rubber & plastic, such as SILICON,NBR, ... A)EE150DEE-25SSSDDSDSD~20Remarks: E=excellent,G=good,S=satisfying,D=badcolor: refer to the pantone numberPacking: According to customers ...