GB/T 31069-2015 Plumbing fittings—Copper pipe fittings

GB/T 11618.1-2008 Pipe fittings of copper and copper alloys—Part 1:Fittings of braze welding type GB/T 192-2003 General purpose metric screw threads—Basic profile GB/T 193-2003 General purpose metric screw threads—General plan GB/T 196-2003 General purpose metric screw threads—Basic dimensions GB/T 197-2003 General purpose metric screw threads—Tolerances GB/T 197-2018 General purpose metric screw threads—Tolerances GB/T 1176-1987 Specification for cast copper alloys GB/T 1176-2013 Casting copper and copper alloys GB/T 1804-2000 General tolerances for linear and angular dimensions without individual tolerance indications GB/T 2040-2002 Sheet of copper and copper alloy GB/T 2040-2008 Sheet of copper and copper alloy GB/T 2040-2017 Copper and copper alloy sheet GB/T 2059-2000 Strips of copper and copper alloys GB/T 2059-2008 Strip of copper and copper alloy GB/T 2059-2017 Copper and copper alloy strip 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 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 6414-1999 Castings—System of dimensional tolerances and machining allowances GB/T 6414-2017 Castings—Dimensional tolerances and geometrical tolerances and machining allowances 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 7307-2001 Pipe threads with 55 degree thread angle where pressure-tight joints are not made on the threads GB/T 9144-2003 General purpose metric screw threads—Preferable plan GB/T 17219-1998 Standard for safety evaluation of equipment and protective materials in drinking water system GB/T 18033-2000 Seamless copper tubes for water and gas GB/T 18033-2007 Seamless copper tubes for water and gas GB/T 18033-2017 Seamless copper tubes for water and gas GB/T 20078-2006 Copper and copper alloys—Forgings GB/T 20078-2023 Copper and copper alloys—Forgings GB/T 196-2025 General purpose metric screw threads—Basic dimensions GB/T 192-2025 General purpose metric screw threads—Profiles GB/T 9144-2025 General purpose metric screw threads—Preferable plan GB/T 17219-2025 Hygienic safety evaluation of distribution equipment,protective materials and treatment materials in drinking water system