The registration address of the city of qingzhou company for the construction of machinery and equipment is located in the village of mazon, the street office of the yellow house in qingzhou city, with the registration authority being the market supervision authority of qingzhou city, represented by the legal person wang lian ming, and operating in the fields of mining equipment, road-building equipment, sand-mining equipment, offshore mining platforms, sand-diggers, dredging vessels, silting equipment, sludge treatment equipment, sifting equipment, municipal garbage disposal equipment, sand-washing equipment, mine equipment, leather-band transporters, design, manufacture, sale, machine parts processing, import and export of goods (project authorized by law and subject to the approval of the relevant authorities)。