... ,SiliconHardness: ShoreA 50,60,70,80,90Lead time 30daysAdvantageAging resistance, high/low temperature resistance, acid/alkali resistance, abrasion resistance etc.SizePowerful design ... requirement.NR,CR,NBR,HNBR,SBR,EPDM,Viton,IIR,Silicon rubber etc. are available.Packing Spec.Standard packing: a. plastic bag ...