Prototype application：
（1） In the search box type https://libtor.taobao.com, taobao link into the company。
（2）Consult customer service and purchase the prototype that needs to be tested. You can apply for 15 days of testing time。
（3）You can place an order to purchase, and you can apply for a refund after the late test is over。
（4）If you are not clear about the operation, you can leave a message below and we will arrange customer service to contact you。
