ChangZengranked first in China's production and sales for many years steel products. ChangZeng's main products include steel beam series. It is one of the most environmentally friendly packaging & printing product one will find. It is recyclable and the recycling process is energy efficient, so there is no worry about losing energy. Its heat treatment includes annealed, quenched, tempered, etc. ChangZenghas grown significantly and earned a reputation for leadership, quality and integrity in its respective field. It can be cold rolled to be smoother and have more precise dimensions.
We are committed to sustainable development. In addition to the good feelings we gain, our sales have actually increased through our good works. This unexpected benefit comes because people were impressed with our job and wanted to work with a company with such responsibility.