CJ/T 296-2008 Undetermined dimension corrugated stainless steel tubes and connector used in fuel gas piping systems

SY/T 0413 GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 1220-1992 Stainless steel bars GB/T 1220-2007 Stainless steel bars GB/T 1804-2000 General tolerances for linear and angular dimensions without individual tolerance indications GB/T 2828.1-2003 Sampling procedures for inspection by attributes—Part 1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection GB/T 2828.1-2012 Sampling procedures for inspection by attributes—Part 1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection GB/T 3280-1992 Cold rolled stainless steel sheets and plates GB/T 3280-2007 Cold rolled stainless steel plate, sheet and strip GB/T 3280-2015 Cold rolled stainless steel plate, sheet and strip GB/T 3323-1987 Methods for radiographic inspection and classification of radiographs for fusion welded butt joints in steel GB/T 3323-2005 Radiographic examination of fusion welded joints in metallic materials GB/T 3323.1-2019 Non-destructive testing of welds—Radiographic testing—Part 1:X-and gamma-ray techniques with film GB/T 3323.2-2019 Non-destructive testing of welds—Radiographic testing—Part 2:X-and gamma-ray techniques with digital detectors GB/T 4226-1984 Cold finished stainless steel bars GB/T 4226-2009 Cold finished stainless steel bar GB/T 4340.1-1999 Metallic materials—Vickers hardness test—Part 1:Test method GB/T 4340.1-2009 Metallic materials—Vickers hardness test—Part 1:Test method GB/T 4340.1-2024 Metallic materials—Vickers hardness test—Part 1:Test method GB/T 5231-2001 Wrought copper and copper alloys chemical composition limits and forms of wrought products GB/T 5231-2012 Designation and chemical composition of wrought copper and copper alloys GB/T 5231-2022 Designation and chemical composition of wrought copper and copper alloys GB/T 7306.1-2000 Pipe threads with 55 degree thread angle where pressure-tight joints are made on the threads—Part 1:Parallel internal and taper external threads GB/T 7306.2-2000 Pipe threads with 55 degree thread angle where pressure-tight joints are made on the threads—Part 2:Taper internal and external threads GB/T 8815-2002 Plasticized polyvinyl chloride (PVC) compounds for wire and cable GB/T 8815-2008 Plasticized polyvinyl chloride(PVC)compounds for wire and cable GB/T 10125-1997 Corrosion tests in artificial atmospheres—Salt spray tests GB/T 10125-2012 Corrosion tests in artificial atmospheres—Salt spray tests GB/T 10125-2021 Corrosion tests in artificial atmospheres—Salt spray tests GB/T 10698-2023 Expansible graphite GB/T 20878-2007 Stainless and heat-resisting steels—Designation and chemical composition CJ/T 180-2003 Manually operated gas valves for use in house CJ/T 180-2014 Manually operated gas valves for gas installations of buildings GB/T 20878-2024 Stainless steels—Designation and chemical composition SY/T 0414-2017 JB/T 6994-2007 JB/T 6994-2007 VD-shaped rubber sealing ring SY/T 0414-1998 Polyethylene Adhesive Band Coating Technology Standard for Steel Pipe Corrosion Protection SY/T 0414-2007 Syt 0414-2007 Corrosion protection of polyethylene adhesive tape on steel pipeline SY/T 0414-2007 Steel pipeline coatings technical standard JB/T 6997-2007 Rubber coverd U shape seals JB/T 6994-1993 GB/T 191-2025 Graphical symbols marking for handling and storage of packages