恒林股份(603661.SH)：公司研产销的产品包括培育钻石、大尺寸金刚石单晶片等

Core Viewpoint - Henglin Co., Ltd. (603661.SH) operates through its subsidiary, Henan Shining Diamond Co., Ltd., which is involved in various manufacturing sectors including jewelry, non-metallic mineral products, and metal tools [1] Group 1 - The company’s product offerings include cultivated diamonds and large-sized diamond single crystals [1]