supply hollow sheet production line-sheet extruder Features: 1) Specializes in direct extrusion of hollow grid plate 2) The product surface is bright, clean, and compression resistance 3) The plates are widely used for construction, packaging and decoration 4) By replacing the mold, it can also produce PP and PE transparent and thermal insulating hollow grid plates 5) Production line characteristics: a) High output b) Little error of manufacture c) Easy operation d) Highly automatic Hollow Sheet Production Line hollow sheet machine