Which environmental protection technology companies in Henan do better?

Henan Jianling Factory is good. It is a company specializing in making concrete pavement bricks and concrete blocks. It is said that it has its own R&D department, introducing German technology. This kind of equipment is very easy to use and the manufacturer is very trustworthy. This family is quite famous in Henan. I hope to adopt my answer, and I am very grateful. If you need anything else, you can ask, thank you!