1) Sometimes the strands jumping (may be caused extruder pressure fluctuation or other reasons), and causes some of strands can’t go into cutter stably. If some stands go into cutter sidelong, not vertically, it will cause such “long pellet”.2) Screener also can’t 100% remove such “long pellet”, when the “long pellet” stands on the screener, it will drop down into normal pellet. It only can remove most of long pellet, not 100%.Conclusions:Based on the investigation results and the testing at PRDC, the complaint can’t be confirmed.