expanded graphite packing is flexible braided packing which is made of an innovative expanded pure graphite yarn. 1.expanded graphite packing is flexible braided packing which is made of an innovative expanded pure graphiteyarn.2.It can be used to seal hot water, high temperature and pressure steam,leat transfer fluid, hydrogen gas, ammonia, organic solvents, hydrocarbons, cryogenicliquids, etc., ...