1. EPDM,Silicon,FPM,NBR... 2, Various of type eg:TC, TB, SC,SB... 3, ... Durable,ozone-resistan 4. Color: Black, red, green, etc Oil Seal: 1.Material: NBR ... have our own mold center, can develop most kinds of high tech requireds.6.According to customers' drawing,customized ... are welcomed.7.Designing and manufacturing all of oil seals, gaskedts,o-rings ,and so on ...