Tianjin Free Trade Ouyuansheng Trading Co., Ltd. is a manufacturer specializing in the
production of building materials and prefabricated houses. Founded in 2001, it focuses on prefabricated houses, machinery,
corrugated tiles, metal profiles, insulation boards, construction companies, construction consulting companies, and real estate.
Developers, electric energy, infrastructure, industrial uses, governments, building materials traders. Equipped with eps cement
sandwich panels, prefabricated houses, modular houses, steel structure warehouses, container houses, etc.