The product by the jacket, core pole, such as plastic piston, needle, the main use of non-toxic materials such as thin-bing-making. 100,000 in the clean production conditions, the ethylene oxide sterilization products by five bacteria, drug-free, pyrogen-free. Jacket material for high transparent PP production, a clear baseline to observe the easy solution, the needle tip sharp and easy to puncture, the patient can reduce the pain. The product is applicable to human clinical subcutaneous or intravenous drug use and clinical increase