This machine specially manufactures roof panel and wall panel, piling up a made of steel 
panel +PU resin foam + PVC sheet. This PU sandwich panel has effect of beauty, 
practicality, heat-insulation, and sound-insulation

1.The manufacturing equipment of piling up method can produce very precise PU 
   sandwich panel.
2.The low-pressure PU injecting machine can measure accurately, with high stability, 
   giving out little floating volume in the manufacturing environment, securing health 
   of workers most effectively.