欧科亿：公司三季度末库存的钨材料及在产品约3.5亿左右

Group 1 - The core viewpoint of the article highlights that 欧科亿 (688308.SH) is focusing on structural upgrade products due to a significant increase in tool product prices and is leveraging its raw material inventory to enhance profitability [1] Group 2 - As of the end of the third quarter, the company's inventory of tungsten materials and semi-finished products is approximately 350 million [1] - The company aims to capitalize on its inventory advantage to further improve its profit margins [1]