Do you mean the platform for buying analytical instruments online? Now is the Internet age, and there are many similar platforms, but each platform has its own advantages. For example, the instrument discount network you mentioned, the main advantages of their family are group purchase and maintenance, and the price and after-sales maintenance service are more prominent. There are two ways to sell and rent new mobile phones, depending on the specific needs of your company. If you look aimlessly, you might as well list a few key points: 1. Physical warehouse under cable. 2. There are many vendors in the platform. 3. Professional maintenance team. You choose according to such conditions, and then go to inspect one by one.