... cuttingequipment.SIN300(R) Expanded Graphite Sheet/Roll ,SIN300S Graphite Sheet Reinforced with smooth metal ,SIN300T Graphite sheet reinforced with Tan ged metalSIN300M Graphite sheet reinforced with metal mesh ... .5-3.2 PH:0-14Made for various gaskets,used in petrochemical,mining.vessels,bolibers,piping and duct,pumps and valves ...