... designed blade and hardening treatment;equipment with longer life-Weier PP,PE,PP-R Series Plastic Pelletizing Line Mainly aimed at the feature ... polyolefin-high solution index number and great viscosity, such as PP, PS, ABS,PC, the specially designed screw is applicable ... evenunique designed blade and hardening treatmentequioment with longer life PP/PE/PP-R Plastic Pelletizing Line---Plastic Machine