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Zip code:210016
Add:21 Hengguang Rd., Nanjing Xingang Economic and Technological Developmengt Zone, Nanjing
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The Group was incorporated in year 2002 and is located in Nanjing Economic and Technological Development Zone, China.

The Group is devoted to the research, production and sales in optoelectronics and electronics industry. It has five production centers and a product line covering both the industrial market,including electronics, automotive and chemical industry, and the residential market. After a rapid development of more than ten years, Keystone has become a top enterprise in the industry with its businesses covering all over the country and overseas areas including Japan, Europe and America.

It is the Group’s constant pursuit to win trust from clients with advanced technology and meet the clients’ needs with first class products.

"Quality, Development, Customer Satisfaction and Employee" are considered as Keystone's highest values.The company always tries to create good working environment, improve management and help employees to realize their personal values. Besides, the company have been devoting to customer satisfaction and establishing Keystone's image as a reliable and enterprising company.
   Keystone Technology Company Inc. is a wholly owned subsidiary of Nanjing Keystone. It is operating as a bridge connecting Nanjing Keystone with the market of both north and south America, helping Nanjing Keystone to narrow the regional and cultural gap.

The optical films, cable harness and consumables for LCD industry and other materials and supplies for automotive and electronics industry, the competitive products from Nanjing Keystone, are also supplied to clients in America through Keystone U.S.

Besides, Keystone is also helping China based enterprises with global sourcing.
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