Ningbo zhehua heavy steel pipe manufacturing Co., Ltd., was established in 2004, a registered capital of RMB 60, 000, 000 and 80, 000 square-meter site in the ningbo camel mechanical and electrical industrial park which is of convenient transportation in the vicinity and port of beilun port only 15 kilometers away. Our company is specialized in manufacturing large-diameter and spiral seam steel pipes with diameter from 219mm to 3420mm and thickness from 6mm to 60mm. Our annul manufacturing capacity is more than 400.000tons. The products are extensively used for pressure pipeline of water, gas and oil and for piling pipe of large-size bridges, ports, airport, gym stadium, station of municipal construction. The company 'product quality is satisfactory to internationally standard. The ISO 9001; 2000 quality management system certification, API 5l certification, Ltd has supplied many important domestic and international project including the hangzhou bay bridge, zhoushan continental water diversion works, German bayer project. Our products are being distributed to Middle East, EU, north American, southeast Asia and Africa and are extensively approved by customers.