Cangzhou Qieernuo Steel Pipe Co., Ltd., situated in Wugang Road, Yanshan County, Hebei Province, was founded in 2005, covering an area of 32,000 square meters with a construction area of 8,000 square meters. In the possession of a complete and efficient quality management system and quality guarantee system, our co***ny passed the evaluation of ISO9001 Quality System Certification in February, 2006 and operated API5L and API5CT certifications on a trial basis in 2008.
With the total investment of RM...
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