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.
It has the functions of heat insulation, energy saving and environmental protection. It’s hot in summer, you need to turn on the air conditioner to cool down. The cold air from the air conditioner will “slip” under the door slit. If a suitable brush door seal is installed on the door seam, it can effectively prevent 98.5% of air loss. The cold in winter also prevents the cold wind from blowing into the warm room, and turning on the heating can also prevent the heating from being lost. Many large-scale cold storages now use such brush door seals on the shield doors of high-speed subway trains.