Has good sealing to avoid leakage
The scale line is formed by injection molding at one time, and there is no pollution to the product
by ink;
PE stopper: It can more effectively avoid chemical corrosion, and is more suitable for sample packaging
and chemical reagent sampling;
No stopper: To avoid possible precipitation of chemical substances in the rubber stopper and
contamination of samples by oxidants that may remain during ethylene oxide sterilization;
The sterilized version is individually packaged and sterilized by cyclohexane.
