PU refers to polyurethane foam. It is a type of polymer compound containing repeated urethane chains. It is one of the most important sub-items in the polyurethane category.
Leak proof sandwich roof panel, polyurethane rigid foam insulation panel, polyurethane composite panel and PU panels are popular terms for polyurethane sandwich panels.
This kind of Rockwool+PU sandwich panel is simple, fashionable, elegant and graceful and has graduated layers and a strong three-dimensional sense to create a rhythmic effect of light and shadow. Patent No.: ZL 2001 3 0108109.4
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