The test tube rack does not have a mechanical (quasi) approval number so it is not a medical device.
Not a medical device based on please refer to: "Medical Device Supervision and Administration Regulations" in the "meaning of medical devices", "the state of medical devices to implement classification management", "the state of medical devices to implement product registration system". The implementation of product manufacturing registration system. In particular, "the meaning of medical devices" is sufficient to show that the test tube rack does not belong to the category of medical devices to prove.