GB 30187-2013 Design specifications for melting and casting security of copper and copper alloys

GB 30080-2025 Safety specification for design and production of copper and copper alloy melting and casting

GBZ 2.1 GB 4053.1-1993 Safety requirements for fixed steel vertical ladders GB 4053.1-2009 Safety requirements for fixed steel ladders and platform—Part 1:Steel vertical ladders GB 4053.2-1993 Safety requirements for fixed steel oblique ladders GB 4053.2-2009 Safety requirements for fixed steel ladders and platform—Part 2:Steel inclined ladders GB 4053.3-1993 Safety requirements for fixed industrial protective railings GB 4053.3-2009 Safety requirements for fixed steel ladders and platform—Part 3:Industrial guardrails and steel platform GB 14050-1993 Types and safety technical requirements of system earthing GB 14050-2008 Types and safety technical requirements of system earthing GB 15930-1995 Fire dampers—Tests GB 15930-2007 Fire dampers for building venting and smoke-venting system JB/T 7688.5-2012 Metallurgical crane technical specification Part 5: Foundry crane GB 15930-2024 Fire dampers for building venting and smoke-venting system JB/T 7688.5-1995 Technical Specifications for Metallurgical Cranes - Clamp Cranes GB 50011-2010 Code for seismic design of buildings GB 50016-2014 Code for fire protection design of buildings GB 50034-2013 Standard for lighting design of buildings GB 50054-2011 Code for design of low voltage electrical installations GB 50058-2014 Code for design of electrical installations in explosive atmospheres GB 50217-2018 Standard for design of cables of electric power engineering GB 50222-2017 Code for fire prevention indesign of interior decoration of buildings GB 50222-1995 Code for Fire Prevention in Design of Interior Decoration of Buildings GB 50009-2012 Load code for the design of building structures GB 50028-2006 Code for design of city gas engineering GB 50041-2020 Code for design of boiler plant GB 50052-2009 Code for design electric power supply systems GB 50053-2013 Code for design of 20kV and below substation GB 50057-2010 Code for design protection of structures against lightning GB 50223-2008 Standard for classification of seismic protection of building constructions GB 4053.1-2025 Safety requirements for fixed metal ladders and platform—Part 1:Vertical ladders GB 4053.2-2025 Safety requirements for fixed metal ladders and platform—Part 2:Inclined ladders GB 4053.3-2025 Safety requirements for fixed metal ladders and platform—Part 3:Industrial guardrails and platform