Top Roller for SUMITOMO Crawler Crane: 1.Material:35SiMn,35SiMnMo ... , pin, sprocket, bottom roller, top roller, idler and so on parts, which can suitable for many models, such as IHI ... LOVOL, XCMG and so forth brands.Top Roller for SUMITOMO Crawler Cranes: Suitable for Model:HITACHIKH100KH125KH125-2KH150-2KH180-2/3KH300-2KH500- ... the order products all the way. Top Roller for SUMITOMO Crawler Crane