... includes M81 and M82 for some PTFE products 2) PTFE filler compound includ Features:1) Pure PTFE includes M81 and M82 ... products 2) PTFE filler compound includes many kinds of items, for example, filled 15-35% glass fiber, carbon fiber, graphite, carbon powder, glass ... ) Sintered PTFE: EG1 and EG2 for extrusion Pure PTFE, PTFE Filler Compound, PTFE Micro Powder