The line adopts high-foaming sheet production technics with double-extruder connecting in series.Its product is a kind of new-type packing material with the features of good heat insulation and cushion characteristic and pearlescent appearance.And it also has following advantages:Shockproofing, sound insulation, heat preservation, dampproof, safety, sanitation and good plasticity.It is used widely in the packing of food, fruit, electronic product, daily necessities, hardware product, advertisement plate, etc.