Kangrui New Material Technology (Nantong) Co., Ltd. is a company engaged in research and development of new material technology, manufacturing of general components, and manufacturing of metal structures. In January 2023, it ordered a batch (18 units) of three grinding head roughening machines for roughening treatment of Apple accessories; In January 2024, another contract was signed to make a prototype, which was also used for polishing different Apple accessories. In April of the same year, the first batch of 18 units of the same equipment were ordered.