First, open the browser and enter the code www.marshcoding.com to enter. (If the official website displays Chinese, please click the red flag in the upper right corner to change it to Egnlsih.)
Second, click "Login" in the upper right corner to log in to your existing account. If you have not registered, please click "Register a new account" and log in after registration.
Thirdly, after logging into the account, select the products to be purchased from the "Products" menu and add them to the shopping car for settlement, as shown in the following screenshot: