... .Rotary die, mechanic screen 3.Automatic rewinder Features:Its extruder, cylinder and screw rods are made of quality alloy steel that ... , clothing, rubbish bag and vest ones. OPTIONAL EQUIPMENT:Feature: 1, cylinder and screw rods are made of hi-quality 38CRMOALA alloy ... precisely to be hardness, durable in corrosion resistance.2, Die hard chrome plating, the structure of spiral mandrel type, out of the ...