... stopper as ever;c. precise design of double-bevel needle point, the patient discomfort during injection minimum, tissue damage, easy healing ... the operators must have relevant medical knowledge;C. Valid for three years, use of clear understanding of product failure, expired prohibited ... -88911957 Fax :86-0519-88677238Mobile: 13813568297 medical 5ml hypodermic syringes (three-piece)