1.Good weather resistance and Color stability 2.Various of materials,such as NBR,EPDM,NR, ... also available, such as NR, NBR, CR, EPDM etc. 2)Color and shape can be changed upon request. Available in various ... AColor: black,white,red,green,yellow,blue or follow the color codeAdvantageGood Ozone resistance, aging resistance, high/low temperature resistance, acid ...