... 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 ... is x42 to x80. Our products have been widely used in many industries, such as Petroleum Projects, Coal Gas Projects, ...