Hi-tech Material Co.,Ltd is the leading manufacturer of mechanical graphite in China,Website:://.htmagroup.com, welcome to wholesale cheap mechanical graphite from our factory. Hi-tech Material Co., Ltd is a carbon group company, the worldwide leading manufacturers of graphite material, graphite felt and carbon carbon composite. htma group 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.