We have adopted the continuous mold production, all stamping process is completed within a set of mold, in order to improve the accuracy of the product and production efficiency. Our machines can process various products, including the material of: brass, copper, stainless steel, iron and other products. Hence we can produce various kinds of high elastic spring. KUNACON also set up the surface treatment and heat treatment process, to ensure the quality of our stamping products, as well as the requirements of environmental protection.