Medical Grey Rubber Stopper For Blood Collection Tube(https://www.klstopper.com/product/medical-rubber-products-series/grey-rubber-stopper-for-blood-collection-tube.html)
Good formulation technology guarantees excellent leakage of butyl rubber stopper，Leakage <20mg
Ultra-low metal dissolution, can be used for human blood metal detection
Special surface treatment technology eliminates the effects of silicon treatments on blood products .
The most stringent process control ensures the cleanliness of the rubber stopper .
Suitable acupuncture resistance，Can withstand 60000 times of acupuncture abrasion
Excellent γ-ray resistance