GVO Company, the introduction of Italian hardware production technology, inherit the Italian tradition of light luxury, elegant and noble, in 2019, the construction of a production base in Shandong, China, GVO factory production area of 50,000 square meters, from design and development, mold manufacturing, automatic stamping, automatic die casting, machining, surface painting, assembly line assembly, experimental testing and other whole industry chain production. GVO is one of the country's most large-scale, industrialized high-end system door and window hardware production factories!GVO heavy duty hidden inside opening inside reverse hardware system, GVO heavy duty window screen integrated hardware system and other products in the industry of major projects and high-end system door an...