Zhang guo jin, a legal person, is represented by zhang guo jin, who is registered at the party school of the lanmung district economic development zone, located at a distance of 500 metres in shandong province, and is operating on general projects: construction of metal parts; sale of metal parts for construction; sale of metal structures; sale of plastics; sale of metal materials; wholesale distribution of hardware products; manufacture of rubber products; sale of rubber products; sale of photovoltaic equipment and metaware; sale of anti-corruption materials. (in addition to the projects for which authorization is required by law, the operation is carried out on an autonomous basis with a licence)