ince 2004, we are producing steel pipes, fittings and flanges. we are located in north china , in hebei province,cangzhou city, yanshan county, industrial development zone. our customers are from varous countries around the world:china asia, europe afrca. To insure the quality , we have a modern technical testing material to controlthe quality of our products. for more information , please send e-mail or fax to our business service. all our customers are welcomed !