Long Ma Steel Pipe Manufacturing Co., Ltd.   

Cangzhou dragon horse steel pipe manufacturing Co., Ltd. is located in the "China elbow pipe fittings capital" Mengcun County hope new district. It was built in 2003, covering an area of 200 mu, with a total investment of 250 million yuan. In 2006, it invested 310 million yuan, and Xing Jianxin factory area occupied 500 mu. It mainly produces straight pipe, seamless steel pipe, alloy steel pipe and other fittings. Two plant and Germany joint venture, and introduced a set of JCOE equipment in West Germany. On this basis, we developed 3 sets of 9 sets of double-sided submerged arc welded straight steel pipe production lines, independently developed equipment won 5 national patents. By the end of 2007, the annual output of the company exceeded 600 thousand tons. All kinds of testing equipment are complete, and can produce diameter 325mm-1220mm, wall thickness 7mm-50mm double-sided submerged straight seam welded pipe......