Shaanxi Yongrui Indus. Limited is mainly engaged in car use double-wall brazed tubes, PVF coating, precision galvanized pipes and oil pipes, for all kinds of cars, refrigeration equipment and industrial equipment. We provide different kinds of pipes with layers of white zinc, colored zinc, green zinc, etc. We have been supplying products to Canada, the United States, Russia, Spain, Turkey, Iran, Brazil and other countries for many years.