... U-Ring., Oil Seal,PU oil seals , rubber flat washers, rubber Circles, Gaskets, engine parts and accessories,compression ... requirement.6. Colour: red ,white,black ,blue ,yellow,green ,brown ,etc.7. Standard:AS568,DIN3771,JIS ... , Optical Projector.Production Equipments Rubber Preforming Machine, Rubber Injection Machine, Rubber Compression Molding Machine, Rubber Extrusion Machine, Cryogenic Deflashing ...