德石股份：国内钻具业务以租赁为主、海外以销售为主，租赁模式长期可实现更高盈利回报

Group 1 - The core viewpoint of the article highlights the distinct differentiation in the business model of the drilling tool segment between domestic and international markets, with domestic operations focusing on tool rental and international operations emphasizing tool sales [1] - The rental model is described as a "double-edged sword," where it incurs high operational costs due to the need for investment in maintenance stations and ongoing expenses related to repairs, transportation, and personnel [1] - However, if product quality is stable and the lifespan is sufficiently long, the cumulative value generated under the rental model may exceed that of one-time sales, potentially leading to higher profitability in the long run [1]