... warranty offer more other machines sheet extruder ZHP-670D series two-layer plastic sheet extruderUSE:ZHP-670D three layer plastic sheet extruding machine was designed ... at home and abroad.It is mainly used to produce plastic sheet of PP,PS,PE,HIPS,they are the materials for ... rolled calendar the helical flume and cycle water cooling bring a perfect cooling effect.10. The temperature of die head, ...