Tianjin Liyuanda Metal Material Co., Ltd. was established in March of 2004. Our company is located in the first steel pipe city of Daqiuzhuang in the east of Tianjin Port and Tianjin International Airport and in the west Jinghu Railway. We enjoy convenient transportation and excellent management environment. Our factory mainly produces galvanized steel pipes, welded steel pipes, spiral steel pipes, square tubes, rectangular tubes, seamless pipes, oil casing pipes and many kinds of other pipes. Our company always adheres to the principle of "the quality of pipes is first, service for the customers is first". Our company implements strictly according to ISO9001:2000 standard and has established a quality management system, from the development, raw material procurement, processing, manufacturing, test, control and transportation to after-sales service. We have established a set of