The registered address of siwald seal technology development limited is located at no. 555 630 liangqing road, liang liang city, with the registration authority being the administrative approval board for liang liang region, represented by the legal person wang xiaoxiu, and which covers the development, sale and technical services of seals; the sale of rubber products, metal products, hardware products, general-purpose equipment and accessories, specialized equipment and accessories, electrical machinery and equipment, and instruments. (projects subject to legal approval may not operate without the approval of the relevant department)