Features: 1) Specialized equipment used for manufacturing embossed aluminum foil (brown paper, cemented plastic cloth, etc.) double-side panels, with a middle layer of anti-combustion polyurethane, polysio-cyanurate, and phenol foam plastic 2) Thickness of sandwich panel produced: 20 - 30mm 3) Width of sandwich panel produced: ;1,200mm 4) Length of sandwich panel produced: to clients' requests 5) Operation process: a) Rigid polyfoam raw materials, in a certain blending ratio, are delivered into the mixing head b) Mixing head agitates raw material through the metering pump of the injection machine c) The injection machine uniformly injects onto the bottom facing sheet of the sandwich panel d) When injection is completed, the bottom facing moves toward the double-belt conveyors together with the top facing sheet e) Between two conveyors, the injected material is foamed and hardened into shape f) At the end of the line, formed sandwich panels are cut into preset lengths by an automatic tracking cutter