304 Stainless Steel Puncture Needle Lumbar Puncture Needle Biopsy Needle Stainless Steel Needle Custom Machining Product Description This product series encompasses high-precision stainless steel needles designed for specialized medical procedures, including epidural anesthesia and tissue biopsy. Manufactured from high-grade 304 stainless steel, these needles offer excellent corrosion resistance, superior strength, and reliable performance. A key feature of this product line