... : HDPE, LDPE, LLDPE the machine body is U-Steel frame. and the main machine is collocated with low-center gear ... of stable transmission, large torque, and convenient repair.the machine cylinder and screw adopt 38 crmoala alloy steel, after nitrogen ... treatment, it has high rigidity, good anti-corrosive performance and is rather durable.during heating course, this machine can automatically control ...