Why return the medical products to HongKong firstly?

Hongkong is a free trade port city, it's famous for import cargo with no custom tax.The import process is very simple and fast.     

If you have medical products return to China(After-sales medical products), send to HongKong firstly, then import to China.(It will save money and the process will be simple and fast).

Any comments, you can contact Mr.Jacky Long with Email:sales@medunion-express.com