(ERW steel pipe) Our company is a professional processing straight seam resistance welding steel pipe manufacturer, the current international state-of-the-art cage roll forming process, the electrical configuration with Germany's Siemens PRC and British MENT DC digital speed control devices to ensure unit high-precision 

 Reliability, high efficiency operation. Product implementation: SY/T5037, GB/T9711, API Spec 5L, API Spec 5CT, GB/T8162- 1999, GB/T8163-1999 standard, widely used in petroleum, natural gas industry, chemical industry, transmission fluid pipe, bridge piling, infrastructure 

 Engineering and steel. The company guarantees to provide you with good quality, reasonable price and welded pipe, straight seam welded steel pipe, resistance welding steel pipes, high frequency welded steel pipe, sales hotline 
 0317-5128533 Mobile: 13323270092 Fax :0317-6322267 Contact: Wang Yuehong URL: http://www.baiyipipe.com