Based on China's current Covid policy (zero-Covid strategy), how to carry out the nucleic acid tests for all residents in an extremely fast and low-cost way is very critical. The task is massive and incredible. But we make it combine Mastars’ tooling/injection molding capabilities/capacities, automation technology and medical experience. Now the test cost is less than US$0.1 per person each time. China’s manufacturing supply chain is reliable and durable always even during the pandemic. It’s amazing!