DIFF Subgroup Additional Only
F05C 2225/04 PTFE [PolyTetraFluorEthylene]
Full Title
Synthetic polymers, e.g. plastics; Rubber > PTFE [PolyTetraFluorEthylene]
F05C 2225/04 Synthetic polymers, e.g. plastics; Rubber > PTFE [PolyTetraFluorEthylene]