It is Tianjin Weikang. Is com credible?

Not an answer, but there are several doubts for reference:

1. Most high-end products are half price;

2. Not many customers leave messages;

3. There is no negative news in the network search results;

4. The name of the head office in Hong Kong cannot be found;

The telephone number of the head office starts with 8 (personal telecommunication service) instead of 2 or 3 (fixed network users).