guide wheel 1.Material:NO.45 steel 2.Usage:excavator parts Excavator Sprocket & Segment SH200 SprocketSprocket & Segment models: KOMATSUPC400-6,7,PC360- ... 7,PC300-5/6/7,PC300-1/2/3,PC220 ... ,E300B,E240,E200B,E120B,E70BHITACHIEX400-2/3/5,EX300-5,EX300-1/2/3,EX200-5,EX200-2/3,EX200-1,EX120,EX100 ...