Excavator Sprocket Rim SH200 1.Production Method:casting 2.Material:ZG40Mn ... .Our heat treatment process provides hardness in high wear areas.Excavator Sprocket Rim Strict quality management to produce effective and stable ... products,and meet customer's demand. MODEL NUMBER (excavator sprocket)KOMATSUPC20,PC30,PC60-1/5/6/7,PC75UU,PC90 ...