... manufacturing all of Oil Seals, Rubber Gaskets, O-Rings, O-Ring Kits, Rubber Cord and so on. Hitachi ... excavator O ring component Use for: 1、Oil Distributing ... in producing different types of o-rings, O-ring repair kits, o ring box, excavator O-ring kits, customized rubber ... EPDM, Silicone and so on. We have various O-ring moulds and can open new moulds as customers' ...