Our company founded in 2004 and we are the largest professional corporation in the production of prestressed concrete steel bars and high-frequency welding steel pipes in North China. Supported by 20 prestressed concrete steel bar product lines and 4 high-frequency welding steel tube product lines in our northern and southern factories, we annually produce 800,000 tons of prestressed concrete steel bars and high-frequency welding steel tubes with various standards.We got ISO9001 Certification in 2007. Our company has the right to self-operate import and export.