1.Place of Origin: Shandong China (Mainland) 2.material:graphite 3..C content:>99% 4.Brand Name:Sanxiang PROPERTY:Firm resistance to high or low temperature,radiation as well as to corrosion,excellent self-lubrecity,low frictio coefficient,unusual flexibility and resiliency.USAGE:Being widely used in kinetic and static sealing for machine,pipe pump and valve in powre industry,oil industry, ...