AMERICAN 9299 Bottom Roller/Track Roller

AMERICAN 9299 Bottom Roller/Track Roller Product Description Crawler Crane Undercarriage Parts Track Roller/Bottom Roller/Lower Roller 1).Warranty: One Year/1800-2000hours 2). Accept : OEM OR Drawing 3).Certificate:ISO9001:2008 ;ISO1004:2004 4) Material: 40Mn2, 50Mn,etc. 5) Technique: Casting or Forging 6)Crawler Crane Undercarriage parts includes: Track shoe, Track Roller, Top Roller, Sprocket, Idler,Pin, Track Chain. 7)For Machinery: Bottomer Roller For Crawler Crane