... Crawler Excavator 3.Hitachi,Kato,Sumitomo etc.for choosing Grease valves (also called chain grease nipple)1.Type:Caterpillar parts2.Used ... , Komatsu, Hitachi, Kato, Kobelco, Daewoo, and Sumitomo crawler excavators4.Grease valves matched with grease nipples to help you add lubrication or oil ...