This video explains the main functions and practical uses of professional medical needles with flat mouth design in a clear, step-by-step format. You'll see how Dongguan Yue Lin Sen Metal Technology Co., Ltd. leverages their ISO 13485:2016 certified medical device quality management system and precision CNC equipment to manufacture these specialized components. The walkthrough covers the enhanced performance features, material selection, and real-world applications in medical instruments, providing valuable insights for B2B professionals in the healthcare industry.