The registration address of qingdao tiancheng environmental plants ltd. Is located in zone f of the qinggyu steel market, qingzhou city, qingdao city, shandong province. The registration authority is the qinggzhou city market supervision authority, with legal representatives, and operates in such areas as specialized equipment for the prevention of environmental pollution, metallurgy equipment, boiler support equipment, metal cutting and welding equipment (which does not include special equipment above), metal structure, casting machinery, exercise machinery manufacture, sale, processing, sale of mechanical parts and components, the import of machinery, spare parts, raw materials and technology required for the export of the enterprise's own products and technologies and the enterprise's own (except goods and technology for which the state limits companies operate or prohibit imports and exports). (projects subject to legal approval are not allowed to operate without the approval of the relevant authorities)。