GB 50315-2000 Design Code for Industrial Metal Piping (2008 Edition)
GB 50235-2010 Specification for the Construction of Industrial Metal Piping Projects
GB 50236-2011 Specification for On-site Equipment and Welding of Industrial Piping Projects
GB 50184-2010 Specification for the Quality Acceptance of Construction of Industrial Metal Piping Projects
GB 50184-2010 Specification for the Quality Acceptance of Construction of Industrial Metal Piping Projects
GB/T 50235-2010 Seamless Steel Pipe for Conveying Fluid
GB/T50235-2010 Seamless Stainless Steel Pipe for Conveying Fluid
GB 50235-2010 Seamless Pipe Fittings Made of Steel Butt-Welding
GB 50235- 2010 Code for Construction of Industrial Metal Piping Engineering
GB 50236-2011 Code of Construction for On-site Equipment and Industrial Piping Welding Engineering
GB 50184-2010 Specification for the Construction Quality of Industrial Metal Piping Projects 2010 Specification for the Construction of Industrial Metal Pipeline Engineering