1.name:graphite roll 2.Place of Origin;changyi China (Mainland) 3..C content:>99% 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,chemincal industry light ...