德石股份：钻具及井口装备产品的核心客户群体主要是石油技术服务公司

Core Viewpoint - The core customer group for DeShi Co., Ltd. (301158) in the drilling tools and wellhead equipment sector primarily consists of oilfield service companies, which provide various services to oil companies after they acquire oil and gas blocks [1] Group 1: Customer Dynamics - Oil companies delegate a range of services, including geological surveys and drilling operations, to oilfield service companies, creating a demand for drilling tools [1] - DeShi Co., Ltd. acts as a third-party supplier, providing supporting drilling tool products to oilfield service companies [1] Group 2: Procurement Variability - Certain wellhead products, such as casing heads, may be procured directly by oil companies based on their procurement systems and management models, indicating variability in purchasing practices [1] - The specific procurement model for wellhead products depends on the actual circumstances of different oil companies, highlighting individual differences in purchasing behavior [1]