the end of the previous stage forward to an oven 13 where the leather like product becomes matured through circulation convection heating then the product is allowed to cool down by the cold air in a cold air chamber 14 finally the release paper is removed at a spot 16 shown in fig1 and then the finished artificial leather or leather like product is wound around a shelf 17 in the meantime the removed release paper is wound around a shelf 19 in the preferred embodiment of the present invention the temperature in the oven 13 is between 70 u00b0 c and 130 u00b0 c the product is heated up in the oven 13 using a preferably energy saving way of electric heating circulation thermal convection whose parts comprises of a hot wind curtain a hot air circulation system a pressure balanced filter etc in the oven 13 a barrier is formed by the fast air current blew via the wind curtain which prevents the hot air inside the oven 13 to overflow and the cold air outside to enter the heat drying process is a cycle process which begins with hot wind supplied through a pressure balanced air duct at the top by a combined cycle unit then after the product is heated up the hot air comes through the air duct back to the combined cycle unit again where it is reheated by an automated heating device whose starting and stopping are controlled by a temperature sensor and an air volume adjusting valve fixed at the tuyere is used to ensure the uniformity of vertical air flow and the uniformity of temperature although the above embodiment of.