Why Prototype Testing Is Important for Custom NBR Valves

https://precisionvalvestudio.lowescouponn.com/how-elastomeric-valves-improve-user-experience-in-dispensing-products

Designing a small part can affect the whole product. A NBR valves may look simple, but it has a real job to do. It must work with the cap, case, fluid, air path, or light path around it