... and can be used to produce high-grade refractorinesss.It's suitable to machine high stiffness*high tensile ... high-speed steel,high carbon steel,etc.In addition,it can be used as catalyst,insulator,precise foundry ... products.2).If any question, please let us know it by E-mail or Telephone at the first time ... t dare to say our quality is best,but it do good.We hope to cooperate with you near future. ...