About the product: Our products comply with the YBB standard, and the ampoule model contains 1ml, 2ml, 5ml, 10ml, 20ml. The vial contains 3ml, 7ml, 10ml, 12ml. We can also produce according to your requirements, but we need detailed product drawings.
About the sample: We can provide a total of 100 free samples, but you need to pay for the logistics. After confirming the bulk order, we can return the logistics cost of the sample.