... price with high Quality rubber spacer 1.material : silicone ,epdm ,rubber,fkm,eva,sponge 2.can be made according to your drawing3 ... and best price 5. Factory direct manufacturing MeterialCR,EPDM,NBR,Silicone,SBR,etcCharacteristicOzone resistant,high/Low temperature resistant,Aging resistant,WearableHardness35 ...