... Foam Systems for Wall(DHK--8601A) Product IntroductionDHK--8601A is spray blend polyols, it reacts with isocyanate to produce foam which ... to all kinds of thermal insulation engineering which uses the spray technology, such as cold rooms, pots, large-scale pipelines ... to all kinds of thermal insulation engineering which use the spray technology, such as cold storages, pot, large-scale pipelines, ...