Glass Syringe, Prefilled Syringe, Injection Pen manufacturer / supplier in China, offering V1 Blue Refillable Insulin Pen 60 Units GLP-1 Compatible, OEM Branding Accepted, Blue 60u Reusable Insulin Pen V1 for Diabetes or Weight Loss Drugs, Reusable White V1 Insulin Pen, Ideal for Subcutaneous Injection and so on.