... . Main products: O-Ring.X-Ring V-Ring.R-Ring. Y-Ring.U-Ring., Oil Seal,PU oil seals , rubber flat ... Hardness Tester, Optical Projector.Production Equipments Rubber Preforming Machine, Rubber Injection Machine, Rubber Compression Molding Machine, Rubber Extrusion Machine, Cryogenic Deflashing ... Test, Thickness Meter, Shore-A Hardness Tester, Optical Projector rubber y shape ring