"Based on domestic market and expand overseas business" is our development strategy for Hot dip galvanized square pipe for tower crane manufacture YuantaiDerun, Welded Steel Pipe Vs Ductile Iron Pipe , Domestic Oil Line Pipe , Water Pipe Connector ,Gold Line Gas Pipe . The principle of our company is to provide high-quality products, professional service, and honest communication. Welcome all friends to place trial order for creating a long-term business relationship. The product will supply to all over the world, such as Europe, America, Australia,Guinea , Ghana ,Austria , Dubai .Our staffs are adhering to the "Integrity-based and Interactive Development" spirit, and the tenet of "First-class Quality with Excellent Service". According to the needs of every customer, we provide customized & personalized services to help customers achieve their goals successfully. Welcome clients from home and abroad to call and inquire!