oil seal 1.Material:EPDM,NBR,silicone ect 2.colour:yellow,red,green ect 3.types:o ring machanical oil seal 1. Oil seals are apply to Auo,air condition,machinery,water pumps,valve,furniture,toys,pipes ect.2. Raw material:NBR,BR,EPDM,HNBR,Viton ect3. In various sizes and colours. Machanical Oil Seal Gasket