The registration address of deutsche quill air conditioning equipment ltd. Is located on the south side of the 100-metre road east of huang hai road and jung hao road, wuzhou county, shandong province, and is represented by wang qing army. It includes central air-conditioning equipment, purification air-conditioning equipment and ancillary products, windmills, flue windboxes, new wind exchangers, heaters, air curtains, wet-deficit machines, axle smoke vents, smoke vents, pressure vents, wind hoses, aluminium alloy vents, electric axle windmills, smoke-proof valves, fireproof valves, control valves, electric control valves, residual pressure valves, fire protection equipment, human defence equipment, environmental protection equipment, distribution tanks, electrical equipment and ancillary products, glass and steel products, and their processing, sale, installation and maintenance. (projects subject to legal approval may not operate without the approval of the relevant department)