Caigangyanmian sandwich panel and its production process to achieve at the factory by automated equipment will rock wool and steel complex as a whole Anyang wool board, rock wool plate thus changing the previous required field complex way, to meet the building the premise was thermal insulation, sound insulation, fire protection and other requirements, but reached a high quality, efficient, reliable, safe target. The product is widely used in Europe after rock wool board manufacturers, already mature sound. Color polyurethane composite board Caigang polyurethane sandwich composite panels raw materials used mainly for color pressure plate and polyurethane foam polyurethane foam polyether or polyester as the main component A component polyisocyanate Cyanamid ester as a main component The B component. A, B two components in the event of mixing. Both increase the reaction time in the event of chain reaction and coaches while rock wool board manufacturer, will absorb moisture from the air, reflect the occurrence of deflation, generating a large number of bubbles in a very short period of time to form a foam structure solidified