Barter is the present and the future of international trade, especially for people who is starting in the import export business. Barter and more: Triangular operations.
Instructions
1. Use a mask to carefully cover the mouth and nose and tie them firmly to minimize the gap between the face and the mask;
2. When using, avoid touching the mask-after touching the used mask, for example, to remove or clean the mask, wash your hands with soap and water or use alcohol hand sanitizer.