"Widun" brand 42.5 grade composite Portland cement has the characteristics of moderate early strength, long setting time, rapid strength development, flexible adjustment of cement color, etc. It is especially suitable for long-distance construction and roadbed and pavement engineering, with strong external adaptability, construction Flexible adjustment, anti-corrosion and durable. 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.