... Warranty:6 months 5.Process:forging 1.Product:Mini Excavator lower roller PC20-3 2.Warrenty:6 months3.Track toller effect:The ... , and water from damaging it.4.Main Product: Track roller,Carrier roller,Sprocket,Segment,Idler,Track Link Assy,Track shoes, Bolt & ... and bulldozer parts.5.Brand:Komatsu,Hitachi,Caterpillar,Kobelco,Summitomo,Hyundai,Daewoo,Volvo,Samsung,Sunward,Kato,Mitsubishi,Ihisce and so on ...