GB/T 45489-2025 General technical specification of the track panel for medium and low speed maglev

GB/T 68-2000 Slotted countersunk flat head screws(common head style) GB/T 68-2016 Slotted countersunk flat head screws GB/T 119.1-2000 Parallel pins, of unhardened steel and austenitic stainless steel GB/T 230.1-2004 Metallic Rockwell hardness test—Part1:Test method(scales A、B、C、D、E、F、G、H、K、N、T) GB/T 230.1-2009 Metallic materials—Rockwell hardness test—Part 1:Test method(scales A、B、C、D、E、F、G、H、K、N、T) GB/T 230.1-2018 Metallic materials—Rockwell hardness test—Part 1:Test method 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 1184-1996 Geometrical tolerancing—Geometrical tolerance for features without individual tolerance indications 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 1591-1994 High strength low alloy structural steels GB/T 1591-2008 High strength low alloy structural steels GB/T 1591-2018 High strength low alloy structural steels GB/T 1804-2000 General tolerances for linear and angular dimensions without individual tolerance indications GB/T 4171-2000 Superior atmospheric corrosion resisting structural steel GB/T 4171-2008 Atmospheric corrosion resisting structural steel 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 5237.2-2017 Wrought aluminium alloy extruded profiles for architecture— Part 2:Anodized profiles GB/T 6892-2000 Wrought aluminium and aluminium alloys—Extruded profiles for commercial usage GB/T 6892-2006 Wrought aluminium and aluminium alloys extruded profiles for general engineering GB/T 6892-2015 Wrought aluminium and aluminium alloys extruded profiles for general engineering GB/T 6892-2023 Wrought aluminium and aluminium alloys extruded profiles for general engineering GB/T 8923.1-2011 Preparation of steel substrates before application of paints and related products—Visual assessment of surface cleanliness—Part 1:Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coatings GB/T 11263-1998 The hot-rolled H and cut T section steel GB/T 11263-2005 The hot-rolled H and cut T section GB/T 11263-2010 Hot-rolled H and cut T section steel GB/T 11263-2017 Hot rolled H and cut T section steel GB/T 11263-2024 Hot rolled H and cut T section steel GB/T 13012-1991 Solid steels—Methods of measurement of the d.c. magnetic properties GB/T 13012-2008 Methods of measurement of d.c.magnetic properties of magnetically soft materials GB/T 13306-1991 Plates GB/T 13306-2011 Plates GB/T 14846-2014 Tolerances on dimensions and form of aluminium and aluminium alloy extruded profiles GB/T 28699-2012 Steel structure protection general requirements of coatings YB/T 4753-2019 Low-to-medium speed magnetic levitation train rails used hot-rolled steel profiles CJJ/T 262-2017 Code for design of medium and low speed maglev transit