... blade and hardening treatment;equipment with longer life-Weier PP,PE,PP-R Series Plastic Pelletizing Line Mainly aimed at the ... polyolefin-high solution index number and great viscosity, such as PP, PS, ABS,PC, the specially designed screw is applicable ... the output is double of the ordinary models. Rotobeater cropping machine is characterized by stable rotation, even, energy-saving and electricity ...