YANTAI YUESEN TRADE CO.LTD is a professional manufacturer of waste oil heating system for more than ten yeras. As the first manufacture of waste oil heating in China, YUESENs technology is from Sweden’ high quality with very competitive price. In the past more than ten years YUESEN waste oil heating system exported to more than 100 countries all over the world, and among them the United Nations purchase our waste oil machines 4 times for its project.br< br