... flame retardant pp granule2.pp plastic,strengthness and toughness3.any color is availableWe have developed more than 300 high-performance engineering plastics ... , mainly including PA6,PA66,PP,PC,PBT,ABS,MPPO and filled composites and nanocomposites, with higher strength and toughness, better flame retardant ... product certification and our flam-retardant product series has obtained the ...