The registration address of shandong changyang steel silo construction engineering ltd. Is located at 2 17th floor, 2-1723, east changdong luxing house, located on the eastern street of changdong city economic technology development zone, shandong province. The registration authority is the market supervision authority of the city economic technology development zone, which is represented by liu chenghong, and which includes construction works; plumbing installation; spiral steel silos, storage equipment, gas panels, inflating tanks, gaseous material retrofitting equipment; steel structures, large steel slabs, steel silo kits, dust collectors, discharge valve doors, bulk carriers, lifting machines and energy-saving environmental equipment, large powdered coal storage tanks, cement tanks, drifting rods, storage equipment development, design, processing and marketing. (projects subject to legal approval may not operate without the approval of the relevant department)