"Sincerity, Innovation, Rigorousness, and Efficiency" is the persistent conception of our firm for the long-term to create jointly with consumers for mutual reciprocity and mutual reward for seamless square tube factory YuantaiDerun, Galvanized Steel Tube Connectors , Welded Pipe Fittings , Welded Tube Buffalo ,Mild Steel Square Pipe Weight Formula . With the development of society and economy, our company will keep a tenet of "Focus on trust, quality the first", moreover, we expect to create a glorious future with every customer. The product will supply to all over the world, such as Europe, America, Australia,Qatar , Brisbane ,Austria , Toronto .Merchandise have been exported to Asia, Mid-east,European and Germany market. Our company has constantly been able to update the items performance and safety to meet the markets and strive to be top A on stable quality and sincere service. If you have the honor to do business with our company. we'll undoubtedly do our very best to support your business in China.