GAO SHANG CO.,LTD is located in the Liaoxi Development Zone with beautiful scenery and convenient transportation. It relies on Tianjin Port and Dalian Port, and radiates the Beijing-Tianjin Industrial Circle and the Northeast Industrial Base.Shangdu is a high-tech modern enterprise integrating scientific research, sales and production of "sealing materials". It has long been committed to the production and sales of rubber sheets, non-asbestos sheets, packings and other sealing material...