If rotating objects should be precisely processed, the vibration of the machine per se or the vibration of the subjects of processing resulting from rotation make precise processing difficult. In the case of these products that require precise processing dimension tolerances, high density tungsten is used as it has an effect to absorb or reduce vibrations. Seung Lim Electric Co., Ltd. can produce parts with tensile strength up to 900N/mm2.  

 Diverse including W-Ni-Fe family, W-Ni-Co family, W-Mo-Ni-Fe family  Density >18.0g/㎤