"Widun" brand 42.5 grade composite Portland cement has the characteristics of moderate early strength, long setting time, fast strength development, flexible adjustment of cement color, especially suitable for long construction distance and roadbed, pavement engineering, and external It has the advantages of strong adaptability, flexible construction adjustment, anti-corrosion and strong durability. Because this variety uses a lot of industrial waste residue, it is a product encouraged by profits and taxes, and meets the requirements of circular economy and sustainable development.