德石股份：取得两项发明专利证书

Group 1 - The core point of the article is that 德石股份 has recently obtained two invention patents from the National Intellectual Property Administration, which may enhance its competitive edge in the oil drilling equipment manufacturing sector [1] - The patents are titled "A Single Cylinder Double Acting Hydraulic Reciprocating Pump and Its Control Method" and "A Drive Shaft Assembly and Rotating Directional Screw Drill Tool," indicating innovation in product development [1] - For the year 2024, 德石股份's revenue composition is entirely from the manufacturing of oil drilling equipment, highlighting its focused business model [1] Group 2 - As of the report, 德石股份 has a market capitalization of 3.2 billion yuan, reflecting its position in the market [1]