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By certification 
Sandwich panel glue (PU glue)
It is a two components Polyurethane glue, which are separated pumped and dispensing on coil surface, then mixed together by spread brush, finally foaming and curing in main lamination machine.
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Panel protective film
It's a kind of self-adhesive PE film which is specially designed for sandwich panel surface protection purpose, its thickness and width can be various.
