DL/T 5167-2002 Design specifications for gate hoist in Hydropower and water resources projects

NB/T 10341.2-2019 Design specifications for hydropower gate opening and closing machinery - Part 2: Design specifications for mobile opening and closing machinery NB/T 10341.1-2019 Water and electricity engineering opening machine design specifications Part 1: Design specifications for fixed winch type opening machine NB/T 10341.3-2019 Design specifications for hydraulic project opening and closing machinery - Part 3: Design specifications for screw type opening and closing machinery

GB/T 11352-1989 Carbon steel castings for general engineering purposes GB/T 11352-2009 Carbon steel castings for general engineering purpose GB/T 116-1986 Specifications for rivet GB/T 1176-1987 Specification for cast copper alloys GB/T 1176-2013 Casting copper and copper alloys GB/T 1231-1991 Specifications of high strength bolts with large hexagon head, large hexagon nuts, plain washers for steel structures GB/T 1231-2006 Specifications of high strength bolts with large hexagon head,large hexagon nuts,plain washers for steel structures GB/T 1231-2024 High strength bolts with large hexagon head assemblies for steel structures GB/T 13098-1991 Ethylene oxide for industrial use GB/T 13098-2006 Ethylene oxide for industrial use GB/T 1348-1988 Spheroidal graphite iron castings GB/T 1348-2009 Spheroidal graphite iron castings GB/T 1348-2019 Spheroidal graphite iron castings GB/T 14039-2002 Hydraulic fluid power—Fluids—Method for coding the level of contamination by solid particles GB/T 3077-1999 Alloy structure steels GB/T 3077-2015 Alloy structure steels GB/T 3098.1-2000 Mechanical properties of fasteners—Bolts, screws and studs GB/T 3098.1-2010 Mechanical properties of fasteners—Bolts,screws and studs GB/T 3098.2-2000 Mechanical properties of fasteners—Nuts—Coarse thread GB/T 3098.2-2015 Mechanical properties of fasteners—Nuts GB/T 3098.3-2000 Mechanical properties of fasteners—Setscrews GB/T 3098.3-2016 Mechanical properties of fasteners—Set screws GB/T 3098.4-2000 Mechanical properties of fasteners—Nuts—Fine pitch thread GB/T 3098.6-2000 Mechanical properties of fasteners—Bolts, screws and studs made of stainless-steel GB/T 3098.6-2014 Mechanical properties of fasteners—Stainless steel Bolts,screws and studs GB/T 3098.6-2023 Mechanical properties of fasteners—Stainless steel bolts,screws and studs GB/T 3633-1995 Technical requirement for sets of torshear type high strength bolt hexagon nut and plain washer for steel structures GB/T 5117-1995 Carbon steel covered electrodes GB/T 5117-2012 Covered electrodes for manual metal arc welding of non-alloy and fine grain steels GB/T 5118-1995 Low alloy steel covered electrodes GB/T 5118-2012 Covered electrodes for manual metal arc welding of creep-resisting steels GB/T 699-1999 Quality carbon structural steels GB/T 699-2015 Quality carbon structure steels GB/T 700-1988 Carbon structural steels GB/T 700-2006 Carbon structural steels GB/T 9439-1988 Grey iron castings GB/T 9439-2010 Grey iron castings GB/T 9439-2023 Grey iron castings GB/T 985-1988 Basic forms and sizes of weld grooves for gas welding manual arc welding and gas-Shielded arc welding GB/T 985.1-2008 Recommended joint preparation for gas welding,manual metal arc welding,gas-shield arc welding and beam welding GB/T 985.2-2008 Recommended joint preparation for submerged arc welding GB/T 985.3-2008 Recommended joint preparation for gas-shield arc welding on aluminium and its alloys GB/T 985.4-2008 Recommended joint preparation for welding on clad steels GB/T 986-1988 Basic forms and sizes of weld grooves for submerged arc welding ISO 4406 JB/ZQ 4295 JB/ZQ 4297 NAS 1638 GB/T 3098.2-2025 Mechanical properties of fasteners—Part 2:Nuts GB/Z 116.2-2026 Photovoltaic direct-driven appliance controllers—Part 2:Operation modes and graphic display