... 2,Injection blow molding machine (injection+blow) 3,PC,PE,PP,PS,SAN One step molding machine has the advantage ... four station process. Because one step molding machine can use the heat which is kept ... is much lower than two steps molding machine, the freedom of molding is higher, it would be ... under the most appropriate State extrusion blow molding.Therefore, forming production of high added-value ...