Ledbond institution was founded in 1998, after years of rapid development, has formed the industrial automation scheme set production and international trade development, system engineering, as one of the suppliers, to provide personalized solutions for industrial products for users. Now has two production technology companies, six sales companies, and established offices in the country more than 20. Ledbond is China heavy machine association bridge crane branch member, Construction Machinery Association member units, with independent import and export rights, is the leading industrial automation system integration and industrial control products and manufacture of high-tech enterprises. The main products of the company include: "R & D and manufacturing K&R" Kerun inverter; "LEDBOND" electrical control system (port machinery, hoisting machinery, mine hoist etc.) R & D and manufacturing; industrial products (low voltage electrical inverter, PLC, servo system, etc.) sales, service; mechanical and electrical products import and export trade. In recent years ledbond institutions to invest large amounts of capital and talent in technology and research and development, the establishment of the Qingdao Kerun Technology Co., Ltd, Qingdao Nippon Electric Co. Ltd, R & D, focus on industrial automation and high-end electric technology of manufacturing; the company continue to enhance the management and operation level, business model innovation has made great progress, at the same time the company has won a high social reputation, and has won the Qingdao City, "the contract and trustworthy enterprise", "Qingdao City Labor Bureau annual A-class enterprise", "Qingdao municipal labor and social security credit enterprise", "Qingdao city science and technology innovation leader", "the university students' innovative undertaking star enterprise", "the Ministry of science and technology innovation fund for small and medium enterprises focus on supporting enterprises" and the honorary title.