Yantai LangYu New Material Technology Co., Ltd. is a set of graphite new product research and development, technical services, product import and export in one of the scientific and technological innovation enterprises, our main products are: expandable graphite, graphite paper, high carbon graphite, medium carbon graphite, conductive graphite and other graphite powder and graphite products, such as: flexible graphite ring, flexible graphite gasket, graphite conductive ring and other products.