Where did you get the patent of high ductility concrete formula?

The formula patent of high ductility concrete was purchased from the website of China National Intellectual Property Administration Patent Invention Open Inquiry. If you need to purchase the patent of high ductility concrete formula, it is suggested that you go to the China National Intellectual Property Administration patent invention public inquiry website to inquire about the detailed information of the patent number, including the patent holder, patent certificate number, technical content of the patent, etc., and contact the patent holder to discuss the purchase. High ductility concrete (HDC) is a special concrete material with high ductility and strength, which can still maintain good mechanical properties and bearing capacity under the conditions of large deformation and fracture.