Tocree (TouChuang Machinery) manufactures copper alloy bearings, bushings, and liners (collectively referred to as "copper bushings" in the industry), which play a crucial role as "key friction components" in heavy machinery. They are typically located at the connection points of rotating or oscillating mechanisms, and their primary function is to absorb friction and impact, protecting expensive core shaft components and ensuring the long-term stable operation of the equipment.