... line is composed of mixing,bucket converyor,feeder,extruder,palletizer with head-cut methods,featuring high automation and capacity.It ... screw made of high quality alloy steel-38CrMoAIA are treated with nitrogen fixation,featuring hardness and,wear-resistant and corrosion. ... great ranage of stepless speed regulation. The line can interlock,alarm with light and voice. It can do it reliably and perfectly ...