.The company could produces high strength, strong durability cast steel shot, cast steel grit through double quenching, tempering, screening and so on. The company has perfect quality control system. The company has introduced two Ervin Test Machine from USA. Ervin Test Machine is mainly used for testing fatigue life of metal abrasive. In additional, the company also has introduced SPECTRO spectral analyzer from Germany to test ingredient of metal abrasive. The quality of products has met SAE & ISO international