TB-C-502 is the equivalent one of John Crane 502 and AES B07.
Graphite has the good property of good resistant-corrosion, high thermal conductivity and lower friction, good self-
lubrication, the smaller expansion. They can be made into the seal faces, bearings and so on. It is ideal to choose it as the
frictional mating rings.
Impregnated Epoxy Resin
Impregnated Furan Resin
Impregnated Phenol Aldehyde Resin