Top Roller for SUMITOMO Crawler Crane: 1.Material:35SiMn,35SiMnMo 2.Warranty:One yearity 3.Abundant casting technology Crawler crane parts including track shoes, pin, sprocket, bottom roller, top roller, idler and so on parts, which can suitable for many models, such as IHI, HITACHI, KOBELCO, KATO, SUMITOMO, SANY, ZOOMLION, LOVOL, XCMG and so forth brands.Top Roller for SUMITOMO Crawler Cranes: ...