Tag: Natural Gas Steel Pipe Holdings Group

Chu Kong Petroleum and Natural Gas Steel Pipe Holdings Group has received accreditation from reputable industry experts for its newly developed clad pipe (Clad pipe). The Clad pipes have qualified API 5LD (2009), DNV OS F101 (2005) and clad pipes technical specification requirements after an examination by the National Quality Supervision and Inspection Center Oil Pipe and CNPC Tubular Goods Research Institute.