Group 1 - The company, Boshen Co., Ltd. (002282.SZ), has confirmed that its main business includes diamond tools, coated abrasives, and rail transit equipment components [2] - The diamond tools produced by the company are primarily used in construction, decoration, and building materials processing [2] - The company has received inquiries regarding the capability of its diamond processing tools to handle artificially cultivated diamonds and whether domestic diamond cultivation companies are its clients [2]