high quality material,proficient machining,right heattreatment Replacement parts of carrier roller for Caterpillar,Komatsu,Hitachi,Kobelco,Mitsubishi,Sumitomo,Daewoo,Hyundai,Samsung and etc. No.Part No.Model No.Weight16S3609D3B,D3C23.0026K9880,3K7962D4C,D4D22.1035A8374,9S3570D5,D6B,95529.8043T3206D6C,D6D36.5051P8717D7F,D7G,97745.5068P6256D8H,D8K47.0074I7345,990178311,312,E110B,E120B14. ...