Cangzhou City Sined Steel Pipe Group Co., ltd was established in 2003, located in Cangzhou Eco and Tech Development District, Hebei province, China, Covering about 1200000 square meters. There are over 400 employees in our company. Our company has five SSAW manufacturing lines, which was imported from United States. The annual output reaches 300000 tons; the outside diameter is 219mm-3020mm, the thickness is 6mm-25.4mm, the steel grade is x42 to x70. Our products have been widely used in many industries, such as Petroleum Projects, Coal Gas Projects, Natural Gas, Piling, Water Supply and Thermal Power Generation. Meantime, we have attained ISO9001:2000 International Quality Management System certification, API 5L Certification, GB/T9711.1-1997 and SY/T5037-2000 and so on.