... -chemistry corrosion resistance 4.SGS,ROHS,REACH,ISO PTFE Fine Powder DF-11PTFE (POLYTETRAFLUOROETHYLENE) is one of the most important plastic ... ).Quality Specification:Conformable with Q/DYG 005-2003)Item: DF-11 . No.ItemDF-11Grade AQualified1Smoothness & CleanessWhite sheet surface,even texture, and ... is apt to make the resin bind together. PTFE DF-11