被老头在公车摸到高潮_日本理论片丫丫4480理论片_chinaxxxxhdtubevideo_欧美午夜性视频

1. 2-point calibration is made to ensure the accurate test results.
2. A closed kit is jointly available for the calibration solution and the waste solution, which is convenient to use and discard, reducing the risk of biological contamination.
3. Reagent bags in large volume are used to greatly increase the number of samples that can be measured.
4. Applicable models: AFT-300, AFT-300AU, AFT-500, AFT-500AU.