The development of my country’s PEN industry is relatively backward. It is expected that large-scale production of PEN products will not be achieved until ten years later.
Polyethylene naphthalate (PEN) is a special engineering rubber material with the advantages of ultraviolet resistance, high gas barrier capability, corrosion resistance, physical and mechanical proper…
What is the solution to the problem that the strength of concrete cannot be increased in the later stage? Concrete surface enhancer manufacturers help you solve the problem
What is the solution to the problem that the strength of concrete cannot be increased in the later stage? Concrete surface enhancer manufacturers can help you solve the problem Anhui Yulong New Materi…