Which is the best quality Qingdao lined steel pipe steel pipe industry manufacturers [Tiankun] qijiangmin 13210299888 Qingdao Tiankun Pipe Technology Development Co., Ltd. was established in 2007, the company registered capital of 50 million yuan, the domestic industry is ranked the top Several companies, with a total investment of 2 billion, covering a total area of ??82 acres, employs 158 people, equipment and technology in a leading position, the company passed the ISO9001-2008, ISO14001-2008 international quality and environmental management system certification, and Institute of Polymer Engineering Materials carry Qingdao University of Science and Technology, Fudan University, Shanghai Institute of cooperation, the establishment of a research and development laboratory, research and development and quality testing integration. The company is located in Qingdao City, Shandong Province, Qingdao days kun Ltd. under the three branches Tiankun Pipe Office of Jinan, Shenyang Tiankun Pipe offices. Company is specialized in plastic-lined composite pipe, plastic composite pipe, plastic cable casing, fire with epoxy composite pipe, water supply plastic composite pipe, inside and outside the plastic composite pipe, plastic composite pipe for coal mining and related pipe fittings and other piping systems for energy saving products design, development, production, sales as one of the modern enterprise.