-high temperature -corrosion resistance -Low thermal expansion -Good resistance for thermal shock -High thermal conductivity

1, Graphite protective sleeve is used in the oxygen free copper rod upward continuous casting machine, connected with crystallizer prevent from high temperture of copper liquid. 

  

2, Protective sleeves contains the inner liner and the sleeve, two parts and its length can be made by the clients like. 3, pictures   protective sleeve                   inner liner