Zhengzhou Sundyn Computer Technology Co., Ltd. was established in August 2001. It is an industry-leading high-tech enterprise specialized in researching, developing, producing and selling products applied to service hall and business window. Since its foundation, Sundyn has regarded technological innovation as the key to build core competitiveness of the enterprise. Taken technology changes life as its product development concept and first-class technology, all-round service as its principle, Sundyn attaches great importance to customer demands and provides zero-distance service. Its product strategies keep abreast of the world latest information technology, taking leading single technology as breakthrough and keeping continuous, efficient, rapid and dynamic development In 2003, Sundyn has promoted service quality evaluation system applied to service hall and business window initially and creatively, which can make customers evaluate and monitor the service of staffs at business halls and window staffs at any time and independently. They have greatly improved the service of window staffs and public images of governmental departments, enterprises and institutions. In 2005, Sundyn Service quality evaluation device was awarded the Practical and New Model Patent Certificate and Appearance Design Patent Certificate, at the same year, it won title of High-tech Enterprise of Henan Province; In 2009, it passed the ISO9001 Quality Management System Certification, and won Computer Software Copyright Registration Certificate; In 2010, Sundyn was granted Practical and New Model Patent Certificate and Appearance Design Patent Certificate of embedded window multimedia information terminal end system; In 2011, it was granted title Software Enterprise. Relying on advanced technology research and development, craft design, equipment processing, complete quality assurance system and perfect after-sales service system, many products of Sundyn quality evaluation device have taken the lead in this industry. So far, those products have been widely used in various fields such as administrative service center, administrative examination and approval center, industry and commerce, taxation, finance, electricity, communications, postal services, social security, hospitals, public security and so on, covering 26 provinces, autonomous regions and municipalities directly under the Central Government of the country, making certain contribution to creating a harmonious society. Sundyn adheres to the advanced concept: technology changes life, innovating and trying its best to provide best products and technical service to customers with first-class products, all-round technical support. It takes winning customers satisfaction as its management principle. Development is our eternal pursuit. Sundyn would like to cooperate with friends of all circles, bring expertise into full play and create the bright future of information industry in the informational engineering.