... based on customers' specifications Feature of Rubber Seal:1.Several material for Oil Seal,Rubber Seal, like:NBR,HNBR,CR,EPDM,SBR,SILICONE ... .Can choose on your requirement.2.Many types of Rubber Seal:TC,TB,TA,SC,SB,SA,VC,VB,VA,DC ... sizes and colors are available.4.Apply for:Auto,machinery,valves,air condition.5.High quality with competitive price.