... It has good corrosion resistance good hardness low friction PTFE filling productsOur company:HUZHOU SONGHUA RUBBER&PLASTIC CO.,LTD ... European,Middle-East,Australia and Asian etc.Characterist:Filled PTFE product has strong corrosion-resistance and friction-resistance,by ... used for the production of washer,valve,bearing,slide,pistonring,insulating sleeve, and self-lubricating seal. Colour white,black or ...