This kind of needle tube is mainly used in the cosmetic industry. Such as divided oil, physiological saline, etc. The separate chemical solution is disposable and cannot be reused!!! It can also be used for feeding. A single seal package has been sterilized. If used for industrial point glue can be reused. A single set of independent sterilization seal packaging, sterilization treatment before packaging. If it is used for separating make-up liquid after unpacking, please use it once. If used for industrial use can be reused many times.