1. In Shandong, the production of Aesop saxophone is mainly concentrated in Jinan. The factory here has advanced equipment and technical team, and is committed to producing various types of saxophones.

2. In Hebei Province, Isosax also has a production base. Factories in this field also attach importance to technology and quality, and adopt modern production equipment and technology to provide consumers with various high-quality saxophone products.

As an important industrial city in the north, Tianjin has also become an important production base for Aesop's investment in China. The factory here has advanced production equipment and professional technical team, and is committed to developing and producing various types of saxophones.

As the capital and cultural center of China, Beijing is also an important production base of Isosaxophone in China. The factory here has rich experience and strong technical strength, focusing on producing high-end saxophone products.