GB/T 26712-2021 Supply stops for sanitary appliance and steam pipe

GB/T 26712-2011 Supply stops for sanitary appliance and steam pipe

GB/T 6461-2002 Methods for corrosion testing of metallic and other inorganic coatings on metallic substrates—Rating of test specimens and manufactured articles subjected to corrosion tests GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 10125-2012 Corrosion tests in artificial atmospheres—Salt spray tests GB/T 20878-2007 Stainless and heat-resisting steels—Designation and chemical composition GB/T 31586.2-2015 Corrosion protection of steel structures by protective paint systems—Assessment of,and acceptance criteria for,the adhesion/cohesion(fracture strength)of a coating—Part 2:Cross-cut testing and ×-cut testing GB/T 1176-1987 Specification for cast copper alloys GB/T 1176-2013 Casting copper and copper alloys 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 2829-2002 Sampling procedures and tables for periodic inspection by attributes (Apply to inspection of process stability) 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 7307-2001 Pipe threads with 55 degree thread angle where pressure-tight joints are not made on the threads GB/T 33733-2017 Terminology and classification for the kitchen and sanitary ware fittings QB/T 5419-2019 The technical requirements for coating and plating of kitchen and bathroom hardware QB/T 5525-2020 The limits and testing methods for the harmful substances in kitchen and bathroom hardware products GB/T 2829-2025 Sampling procedures and tables for periodic inspection by attributes(Apply to inspection of process stability)