工业母机ETF（159667）涨超0.7%，近20日净流入超2.1亿元，关注工业母机自主可控投资机会

Core Viewpoint - The article highlights the investment opportunities in the industrial mother machine sector, particularly focusing on the need for self-sufficiency in key components and machinery manufacturing in China [1]. Group 1: Investment Opportunities - The Industrial Mother Machine ETF (159667) has seen a rise of over 0.7%, with a net inflow of over 210 million yuan in the past 20 days, indicating strong investor interest [1]. - Guojin Securities suggests focusing on leading enterprises in core areas such as CNC systems and ball screw guides, as well as undervalued general machine tool leaders [1]. Group 2: Industry Overview - The Industrial Mother Machine ETF tracks the Zhongzheng Machine Tool Index (931866), which selects 50 listed companies involved in machine tool manufacturing and key component services from the Shanghai and Shenzhen markets [1]. - The index reflects the overall performance of listed companies in the machine tool industry, which is characterized by high industry concentration and focuses on the manufacturing sector [1].