\"Hi-tech Material Co.,Ltd is the leading manufacturer of carbon carbon round in China,Website: , welcome to wholesale cheap carbon carbon round from our factory. Hi-tech Material Co., Ltd is a carbon group company which is one of the worldwide leading manufacturers of graphite material, graphite felt and carbon carbon composite. Hi-tech Material Co., Ltd is a jointed company founded by the 4th Academy of CASC and the research institute of China Aerospace Science and Technology Corporation and some other graphite companies on November 18, 2012. The company is mainly engaged in research, development, production, sales of carbon carbon composite. Currently, it has developt a production structure of graphite material, graphite felt and carbon carbon composite. \"