The registration address of yuen yuen yuen yuen yuen, hongang township, hebei province, is located at no. 8 on grand north road, wang santang township, hong kong township, with the registration authority being the grand town market supervision authority, with legal representatives of zhang wanxia, and covers general projects: manufacture of new building materials (without dangerous chemicals); manufacture of light construction materials; sale of light construction materials; construction of water-proof collage products; sale of water-proof scrolls; sale of construction materials; sale of construction materials; manufacture of insulation and soundproof materials; production of fireproof materials; sale of fire resistant materials; sale of temperature-resistant materials; sale of fibres and products; sale of fibreglass fibres and products; sale of products; manufacture of cement products; manufacture of rubber products; sale of rubber products; production of fire-blocked materials; sa...