1. The needle tubing is made of high-quality Durimet; the tube wall is slick to puncture with very little resistance;
2. The needle point is sharp-edged, which is of pain-free and microlesion when injecting;
3. The tube is made of medical PVC material, which is transparent, soft and flexible but not easy to distort;
4. No hemolytic reaction, no acute systemic toxicity; the product is sterilized with ethylene oxide; it is sterile and pyrogen-free.