Developed the scientific and technological Limited Company is established in 1985 at the Great Wall of Shenzhen, it is one, in order to research and develop and produce the magnetic head products of hard disk, multi-functional ammeter products, the tax accuses of the products , memory products , takes the photograph in the video magnetic head products, large-scale export-oriented listed company of Hi-Tech turning equipment ,etc. into the staple automatically (securities code: 000021, the securities are abbreviated as : G deep science and technology). It is equal to an organic whole that the company collects and researches and develops, produces, sells, there are branches and research and develop the team in Hong Kong , Singapore , U.S.A. and other places. The modernized workshop with more than 5100 staff, more than 100,000 square meters, including high grade of more than 10,000 square meters purifies the workshop. There are modernized measuring and quality control system, approve through the laboratory country of China that the committee (CNAL) approves in its dependability laboratory. Develop the Great Wall scientific and technological Limited Company after passing and comparing in many ways, has chosen the Penoa company as its office equipment provider finally, and adopt service outsourcing the way in all later stages, while saving trouble and saving time to save money, the equipment runs normally, the document prints quality to improve, use the department not to complain. The Penoa company has offered first-class products and service for  the Great Wall developing the scientific & technical corporation, have meet the constant demand of every department and  not only have  established the good service image but also   won reputation .