Anyang City is Tyrone Co. Plastic Geogrid reinforced double steel grille and 351 advanced ultrasonic welding technology, is now an annual 10 million square meters of production scale. The product set has just, in one of the advantages of flexible grid, relative to the traditional plastic grille is a new breakthrough and development of the product because of the performance indicators are higher than the current national standard GB / T 17689 - 1999 "Geosynthetics plastic geogrid ", and has passed the Ministry of Railways Product Quality Supervision and Inspection Center, Ministry of Communications Highway Engineering Test Center, Ministry of Water Quality Testing Center capital projects and other national testing authority approved inspection department, and successfully applied to high-grade highways, levees, and other national and provincial and municipal infrastructure projects. Zheng Jingli Manager Yang