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Established in 2004, Qinhuangdao High-Tech Energy Saving Dorwin Co., LTD(OTK for short) Is located in Qinhuangdao, a beautiful coastal city in China. We are engaged in the production, development and sales of blinds between glass, Mosaic glass, decorative glass. The investment is 120 million RMB, covering an area of 50 hectares, and the workshop area is 36,000 square meters. Now we have a technical research and development team that take energy conservation and environmental protection as the core, as well as hundreds of specialized production technicians; With abundant capital and technical support, first-class management team, advanced assembly line、automation equipment and perfect quality management system.

As a pioneer in China's blinds between glass, we have been developing and applying a patent for blinds between glass since 2003, and has received 13 patents so far including the patent we achieve in the United States. In 2004, the first blinds between glass production base in China was established by us,.In 2005, we obtained the ISO9001 quality management system certificate and ISO14001 environmental management system certificate. In 2006, we obtained the US certification of IGCC. In 2007, won the construction ministry "national construction industry scientific and technological achievements promotion project",It was also listed as the key project of China’s “eleventh five-year “plan, The ministry of construction designated us as the editor-in-chief of the industry standard for the built-in sunshade glass products. In 2014, we got the CCC certification.

OTK is a high-tech enterprise which is based on processing& manufacturing and technology innovation. The main products are blinds between glass with independent intellectual property, the technology reaches the international advanced level. Focus on energy conservation since 2004,we provide high quality and energy-efficient products to the world. Products are exported to the United States, Canada, UK, Australia, South Korea and other countries.Established long-term business relationship with many international famous companies,such as MASONITE,LARSON, PELLA,NANYA, RSL.etc. The annual export volume is 350,000pcs.

Contact Us

  • Add: No.1 of Haihe Road Haigang District Qinhuangdao Hebei Province,China PC:066004
  • Tel: +86-335-8507560 8016093
  • Fax: +86-335-8507560
  • Web: www.otkdoorglass.com
  • Email: [email protected]