Zhang xiao ning, a legal person, is represented by zhang xiao ning, who is registered at 56 per cent of the northern block of each of the villages in front of each of the townships, located in the grand townships of kanyong city, hebei province. Heat and soundproof materials manufacture; sale of heat and soundproof materials; production of insulation and soundproof materials; production of fire resistant materials; manufacture of rubber products; sale of building waterproof material; sale of building waterproof materials; sale of building waterproofing equipment; sale of fireproof waterproofing material; sale of fireproof materials; manufacture of fireproof materials; manufacture of eco-environmental materials; sale of eco-environmental materials; sale of fibres and products; sale of temperature-proofing materials; sale of construction materials; sale of high-performance sealed materials; sale of anti-corruption materials; sale of chemical products (other than licensed chemical products); production of electrical cables; manufacture of electrical equipment and control equipment; sale of electrically controlled equipment (subject to legal licensing, sale of fibres and products; authorization to carry out construction-related projects under a legal licence; approval to carry out construction-related