掛號信通過水運是2-3個月到達，通過航空加水運是1-2個月，通過航空快運是2周左右。收到你的信后，我們將通過中國郵政走水運寄貨，并會告知你包裹號。謝謝！

熱心網友

Certified mail will take about two to three months if send by sea, about one to two months if send by air, or about two weeks if send by air express. After we get your letter, we will send the package by sea through chinese postmaster. We will inform you the package number later. Thanks.