9mm Screw Closures Manufacturer
9mm Closures are formed by the combination of Cap and Septa. Screw Neck guarantees the tightness of 9mm Closures. Generally speaking, one end of PTFE faces the sample surface, because PTFE is highly inert and difficult to react with chemicals. Aijiren also supports separate orders for Cap and Septa.
The 9mm screw neck closures are made of pp material, septa is made of PTFE and Silicone, and PP is lightweight. The thread can make the cap easy to seal with the vial without borrowing any tools. Aijiren’s septa adopts a unique composite process to ensure that the septa is not easy to fall off.